Answer:
A. That the organisms are now extinct
Most organisms in the fossil record no longer live on Earth. This implies that those organisms are now extinct.
Explanation:
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Climate change can alter where species live, how they interact, and the timing of biological events, which could fundamentally transform current ecosystems and food webs. Evaluate each of the changes that can occur within an ecosystem . Select ALL of the changes that could be caused by rising temperatures.
Answer:Answer is A) B) C) D)
Explanation:
We have that the functions of Temperature rise are
Acidification of OceanThe local weather exchange influences the timings of herbal activitiesMigration Entirely leaving of that ecosystem behindFrom the question we are told
Climate change can alter where species live, how they interact, and the timing of biological events,
which could fundamentally transform current ecosystems and food webs.
Evaluate each of the changes that can occur within an ecosystem .
ClimateGenerally these are changes that can occur within an ecosystem
Acidification of Ocean Food cycle is distructuredInvasive Species.The local weather exchange influences the timings of herbal activities There is a drastic enlarge of most important producers in Oceans like Cyanobacteria.Migration Entirely leaving of that ecosystem behindTherefore
We Find that
Acidification of OceanThe local weather exchange influences the timings of herbal activitiesMigration Entirely leaving of that ecosystem behindAre all functions of Temperature rise
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Which are vital signs?
O temperature, respiratory rate, and weight
O muscle mass, height, and weight
Oheart rate, temperature, and height
temperature, respiratory rate, and heart rate
The correct combination of vital signs is temperature, respiratory rate, and heart rate.
Vital signs are key measurements that provide important indicators of a person's physiological status and overall health. They help healthcare professionals assess and monitor a patient's condition. The vital signs typically include temperature, respiratory rate, heart rate, and blood pressure. Among the options provided, the correct combination of vital signs is temperature, respiratory rate, and heart rate.
Temperature is a measure of the body's internal heat. It can be measured orally, rectally, or with the help of infrared thermometers. Deviations from the normal range may indicate fever or hypothermia, which can be indicative of underlying health issues.
The respiratory rate refers to the number of breaths a person takes per minute. It provides insight into lung function and overall respiratory health. Abnormal respiratory rates may suggest respiratory distress or underlying pulmonary conditions.
Heart rate, also known as pulse rate, measures the number of times the heart beats per minute. It reflects cardiac activity and can be assessed by feeling the pulse at various points in the body. Deviations from the normal heart rate can indicate cardiovascular problems or other physiological abnormalities.
Weight, muscle mass, and height are not typically considered vital signs. They are important anthropometric measurements used for assessing overall body composition, growth, and nutritional status. While these measurements are relevant in healthcare, they are not classified as vital signs.
In summary, the vital signs include temperature, respiratory rate, and heart rate. Monitoring these parameters allows healthcare professionals to gain valuable insights into a patient's health status, identify potential issues, and make informed decisions regarding treatment and care.
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2. How does the Staphylococcus aureus bacteria initially present itself on an individual's skin?
Answer: Basically, Staphylococcus aureus lives harmlessly on many human skin surfaces including the mouth, around the nose, armpit, groin, and other areas. But, when the skin is punctured or broken, this bacteria may enter the wound; thereby causing an infection.
Arrange the following in the correct sequence for olfaction 1 ) CN I 2 ) mitral cell 3 ) olfactory cortex 4) association neuron
The correct sequence for the olfaction is:
1) CN I
2) Mitral cell
3) Association neuron
4) Olfactory cortex.
The correct sequence for olfaction is as follows:
1. The olfactory nerve, or CN I, states that the olfactory sensory neurons are located in the olfactory epithelium of the nasal cavity.
2. The axons of olfactory sensory neurons form synapses with the principal output neurons of the olfactory bulb, known as mitral cells.
3. Mitral cells communicate with the olfactory brain via association neurons that conduct their axons.
4. Olfactory Cortex: The olfactory cortex interprets and processes the information that the olfactory bulb sends to it. It is located in the temporal lobe of the brain.
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The variety and genetic differences found within an ecosystem represents the ecosystems ________.
The variety and genetic differences found within an ecosystem represent the ecosystem's biodiversity.
Biodiversity refers to the variety of living organisms that inhabit an ecosystem, including species, genetic diversity, and ecological diversity. The biodiversity of an ecosystem is determined by the number and variety of different species present, as well as the genetic differences within each species.
It also provides numerous cultural and recreational benefits, such as the enjoyment of natural areas and the aesthetic value of diverse ecosystems.
The biodiversity is under threat due to various human activities such as habitat destruction, pollution, and climate change. Loss of biodiversity can have significant consequences for both the ecosystem and human well-being.
Therefore, conservation efforts aimed at preserving biodiversity are critical to maintaining healthy ecosystems and ensuring the long-term sustainability of the planet.
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4. (15) Some dog breeds are either black (BB, Bb) or brown (bb). However, the ability to create pigment (colour) is the result of a separate gene. For black or brown color to show, the AA or Aa must also be present; if not, the aa genotype results in no colour (albino/white). All responses must include the dihybrid Punnett squares with the results clearly stated. lting from a croce between two completely
The color of dog breeds can be black (BB or Bb) or brown (bb), and the ability to create pigment depends on the presence of the A gene (AA or Aa). The aa genotype results in no color (albino/white). Punnett squares can be used to predict the possible genotypes and phenotypes resulting from a cross between two dogs.
To determine the possible outcomes of a cross between two dogs, we can use a dihybrid Punnett square. Let's assume one dog is black (BbAa) and the other is brown (bbAA).
The Punnett square for the BbAa x bbAA cross would look like this:
Bb Ba
bb | Bbba | Bbaa
bb | bbba | bbba
From the Punnett square, we can see that there are four possible genotypes for the offspring: Bbba, Bbaa, bbba, and bbba. Among these genotypes, the Bbba and Bbaa genotypes will result in black-colored dogs, while the bbba and bbba genotypes will result in brown-colored dogs.
It's important to note that the presence of the A gene is necessary for color to be expressed, so the aa genotype would result in no color (albino/white) regardless of the B gene.
In summary, the use of a dihybrid Punnett square allows us to predict the possible genotypes and phenotypes of offspring resulting from a cross between dogs with different color and pigment gene combinations.
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what is the kreb cycle?
Answer:
The citric acid cycle – also known as the TCA cycle or the Krebs cycle – is a series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins.
Answer and Explanation:
I believe the Krebs cycle is the pathway of oxidation, glucose, fats, and amino acids..
I could be wrong..
When DNA is copied, sometimes one or more of its nitrogen bases are copied incorrectly. How do you predict that a change to a single nitrogen base, such as an adenine or a thymine, could affect the function of a gene? Use science reasoning to support your prediction.
Answer:
A change in a nitrogen base can affect the function of a gene by being transcribed into a non-synonym codon and therefore also being translated into a distinct protein.
Explanation:
A mutation is any alteration in the nucleotide (DNA) sequence of the genome of an organism.
During gene transcription, a specific DNA sequence is used as a template to create an mRNA sequence.
The linear order of triplets of nucleotides or codons in mRNA determines the order of amino acids that will be added to the protein during translation.
A single nucleotide polymorphism (SNP) is a single mutation and has the potential to encode a different codon.
A non-silent mutation is a type of mutation that leads to the addition of a different amino acid in the resulting protein.
Non-silent mutations can be produced by insertions, deletions or SNPs.
In conclusion, a change in a nitrogen base can affect the function of a gene by being transcribed into a non-synonym codon and therefore also being translated into a distinct protein.
In your own words, explain how photosynthesis and cellular respiration form a cycle. Include details about the organisms that perform photosynthesis and cellular respiration, and the materials involved.
Explanation:
Photosynthesis and cellular respiration are connected through an important relationship. This relationship enables life to survive as we know it. The products of one process are the reactants of the other. Notice that the equation for cellular respiration is the direct opposite of photosynthesis:
Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O
Photosynthesis: 6CO2 + 6H2O → C6H12O6+ 6O2
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water. While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration. We breathe in that oxygen, which is carried through our blood to all our cells. In our cells, oxygen allows cellular respiration to proceed. Cellular respiration works best in the presence of oxygen. Without oxygen, much less ATP would be produced.
Cellular respiration and Photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere.
Please select the word from the list that best fits the definition
process that takes place at mid-ocean ridges
Sea floor spreading
continental drift
magnetic reversal
magnetic minerals
fossils
Deer mice are usually dark brown and live in forests with dark soil. However, the deer mice in the Sand Hills of Nebraska are lighter brown and live in an area with light, sandy soil.
Based on this information, what ,begin emphasis,most,end emphasis, likely caused the change in the Sand Hills deer mice?
Answer options with 4 options
A.
Lighter colored mice were preferred by females.
B.
Lighter colored mice came from snowy habitats in the north.
C.
Lighter colored mice had more dominant genes in their new habitat.
D.
Lighter colored mice were more likely to avoid predators and to reproduce.
Lighter colored mice were more likely to avoid predators and to reproduce. Therefore, option (D) is correct.
The lighter brown coloration of the deer mice in the Sand Hills of Nebraska is likely an adaptation that provides them with a survival advantage in their specific habitat. The light, sandy soil in the area may offer better camouflage for lighter colored mice, making them less visible to predators and increasing their chances of survival.
As a result, these mice would have a higher likelihood of successfully reproducing and passing on their lighter coloration traits to future generations.
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the illustration displays cross-sections of muscle filaments in a sarcomere. myosin filaments are represented by the larger dots and actin filaments are represented by the smaller dots. match the filament pattern in the four numbered squares with the correct placement in a relaxed sarcomere of striated muscle.
The portion of a Z-line that is between two nearby neighbors is known as a sarcomere (or Z-discs). The Z-line (derived from the German word "zwischen," which means between), which anchors the actin myofilaments, can be seen in between the I-bands in electron micrographs of cross-striated muscle.
The I-band region is located around the Z-line (for isotropic). The I-band is the region of thin filaments where thick filaments are not overlaid (myosin).
The I-band is followed by the A-band (for anisotropic). named after the characteristics they exhibit under polarized light. The full length of a single thick filament is contained within an A-band. There are both thick and thin filaments in the anisotropic band.
The H-zone is a paler area located within the A-band (from the German "heller", brighter). Known as a result of their lighter look under polarization imaging technology. The region of the thick filaments that lacks actin is known as the H-band.
A narrow M-line, which is derived from the German word "mittel," or "middle," emerges in the middle of the sarcomere, which is made up of cytoskeleton cross-links, within the H-zone.
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Which of these is true for a fertilized egg?
O A. It has DNA from both parents.
B. It has a haploid number of chromosomes.
O C. It has DNA but no chromosomes.
.
D. It has too many chromosomes until it splits.
Answer:
A. DNA from both parents
Explanation:
without DNA there would not be fertility at all or any similarities with the parents
What is DNA called that is formed by switching genes?
Answer:
EPIGENETICS
Explanation:
Epigenetics: Switching Genes On and Off
Epigenetics is the Genetic switches are gene regulatory networks; i.e. collections of genes which act to switch each other on and off.
PLS RATE AS BRAINLIEST
Answer:
Epigenetics
Explanation:
Epigenetics: Switching Genes On and Off
frontiersinorg
example
mutation in the BRCA1 gene prevents it from working properly, making it more likely for a person to get breast cancer
actress Angelina Jolie had a mastectomy even with having cancer because she knew she had this mutation
Please answer this I have to get done fast ! ……………………………………….
Answer:
c) The caterpillar is a herbivore
Explanation:
The caterpillar eats the flower, the frog eats the caterpillar, the snake eats the frog and the owl eats the snake. The is a food chain. If you take one animal out it would affect them all.
The article states that lead is neurotoxin. What part of the body does it affect?How?
Which statement describes how energy is conserved in an ecosystem? A. About 90% of the energy is used or released by the organism, and the remainder is transferred to the next trophic level. • B. About 40% of the energy is transferred to the next trophic level, and the remainder is released into the ecosystem. c. About 90% of the energy is transferred to the next trophic level, and the remainder is released into the ecosystem. • D. About 10% of the energy is used or released by the organism, and the remainder is transferred to the next trophic level.
Answer:
about 90 of the energy is transferred TO the next trophic level...which is the answer is A
Survival of populations through climate change demands biogeographic shifts, adaptation of populations, or local acclimatization of individuals. The results of this study show that acclimatization can allow A hyacinthus corals to acquire substantial high temperature resistance over a timespan shorter than can allow for evolutionary change. This study opens other research questions illustrating how science perpetuates udence Select all the questions that represent future research opportunities that stem from this study. Do current climate change models reflect biogeographic shifts, adaptation of populations, and local acclimatisation of individualu? Do all coral species have equal acclimatization ability in temperatures that exceed normal temperatures? Is there an upper water temperature limit to acclimatization or adaptation? Do multiple stressors (for example, pH and temperature change) reduce the ability of corals to respond to environmental change?
Evaluate the accuracy of current climate change models in reflecting biogeographic shifts, adaptation of populations, and local acclimatization of individuals.
Investigate the variability in acclimatization ability among different coral species in response to temperature extremes.
Determine the upper limit of water temperature that corals can acclimatize to and what happens if that limit is exceeded.
Study the impact of multiple stressors such as changes in pH and temperature on the ability of corals to respond to environmental change.
These questions provide a roadmap for further research in the field and help to deepen the understanding of the role of acclimatization in the survival of coral populations through climate change.
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Which of the following amino acid chains would be produced from the mRNA sequence AUACUUCCUAGUUGA
A. Isoleucine - leucine- proline- serine- stop
B. Isoleucine - leucine- stop - proline- serine
C. Glycine - glutamate - lysine - lysine - stop
D. Isoleucine - alanine- proline- serine- stop
Option D. Isoleucine - alanine- proline- serine- stop, is the amino acid chain that will be produced from the mRNA.
The mRNA sequence AUACUUCCUAGUUGA is translated into a three-nucleotide codon, known as a triplet, which codes for a specific amino acid. The sequence AUACUUCCUAGUUGA is read from 5' to 3', starting with the first nucleotide and ending with the last nucleotide.
The codons are then translated into the corresponding amino acids. The codon sequence AUACUUCCUAGUUGA corresponds to the amino acid sequence isoleucine - alanine - proline - serine - stop. Isoleucine is coded for by the codon AUA.
Alanine is coded for by the codon UAC, proline is coded for by the codon UCC, and serine is coded for by the codon UAG. The codon UGA signals a stop codon, which marks the end of the polypeptide chain. Therefore, the sequence of amino acids that would be produced from the mRNA sequence AUACUUCCUAGUUGA is isoleucine - alanine- proline-serine-stop.
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Hi,
I don't undestand how epidemiology, through targeted studies, has made it possible to make public health choices to fight cancer. In particular why there is systematic screening for breast, prostate or colon cancer but not systematic for the pancreas, testicle, bladder, etc.
Thanks in advance !
Epidemiology is the study of patterns, causes, and effects of health and disease conditions in populations. Through targeted studies, epidemiologists have identified risk factors for various types of cancer, which has led to the development of screening programs and other public health interventions.
Breast, prostate, and colon cancer are among the most common types of cancer and have well-established screening programs in place. This is because these types of cancer have a relatively high incidence rate, and screening tests are effective in detecting early stages of the disease when treatment is most effective. In addition, there are well-established risk factors for these types of cancer, such as age, family history, and lifestyle factors like diet and physical activity.
In contrast, screening for other types of cancer, such as pancreatic, testicular, and bladder cancer, is not as systematic. This is because these types of cancer have a lower incidence rate, and screening tests are less effective in detecting early stages of the disease. For example, pancreatic cancer is often diagnosed at an advanced stage because symptoms do not appear until the disease has progressed. Testicular cancer is relatively rare, and self-examination is often effective in detecting early signs of the disease. Bladder cancer is often diagnosed after symptoms appear, but there is ongoing research into the effectiveness of screening tests for this type of cancer.
In addition to incidence rates and screening effectiveness, other factors that influence public health choices for cancer prevention and control include cost-effectiveness, access to healthcare, and potential harms associated with screening tests. For example, some types of cancer screening tests, such as mammography for breast cancer, can lead to false-positive results and unnecessary follow-up procedures, which can cause anxiety and additional costs.
In summary, epidemiology has played a crucial role in identifying risk factors for various types of cancer, which has led to the development of screening programs and other public health interventions. The choice to implement systematic screening for breast, prostate, and colon cancer is based on a combination of factors, including incidence rates, screening effectiveness, cost-effectiveness, access to healthcare, and potential harms associated with screening tests.
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Which of the following events takes place during the mitotic phase of the cell cycle?
O Duplication of DNA
Duplication of
DNA
Duplication of
centrioles
Which of the following events takes place during the mitotic phase of the cell cycle?
Separation of Chromosomes
Duplications of centrioles
Division of Cytoplasm
Separation of
chromosomes
Division of
cytoplasm
The events that takes place during the mitosis are separation of chromosomes, duplication of centrioles, division of cytoplasm, separation of chromosomes and division of cytoplasm.
Phases of mitosisThe majority of the cell's life is spent in the interphase, just before prophase, where mitosis's start-up is prepared for (the DNA is copied). The prophase is technically the first phase of this process, though, because the actual process requires the division of the nucleus. The duplicated chromosomes are aligned, separated, and transferred to the cell's opposite poles during the multistep mitotic phase, after which the cell divides into two brand-new, identical daughter cells.The cell divides its cytoplasm and divides its DNA into two sets during the mitotic (M) phase to produce two new cells.For more information on mitosis kindly visit to
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The innermost cells of the
are continuously
dividing through mitosis to form new cells.
In estuary is ____
A a fresh water biome
B an area with a low concentration of minerals and nutrients
C characterized by deep water
D an ecotone
Answer:
The answer to your question is D an ecotone
Explanation:
An ecotone is the area of transition between two different biomes so ecotone is the boundary between two different habitats.
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In reviewing evidence from a cold case, Investigator Chang realizes that the original investigators did not collect any DNA evidence. She's found a possible blood spot on some clothing in evidence that could yield some DNA of the perpetrator. She also knows that the investigators had a suspect in mind but could never prove her involvement. However, the suspect was embalmed and buried five years ago.
Why will Investigator Chang be unable to collect DNA from the suspect?
DNA is no longer available after three years.
An embalmed body isn't suitable for DNA testing.
A body that has been buried in dirt corrupts DNA material.
DNA testing techniques can't extract DNA from dead bodies.
Answer:
An embalmed body isn't sutible for DNA testing
Explanation: I just took the rest and got it right
Transmission electron microscopes that use high-energy electrons accelerated over a range from 40.0 to 100 kV are employed in many applications including the study of biological samples (like a virus) and nanoscience research and development (alloy particles and carbon nanotubes, for example). What would be the spatial limitation (in pm) for this range of electrons
Answer:
Explanation:
Using the concept of de Broglie wavelength under relativistic conditions to determine the spatial limits for electron range.
de Broglie wave-length \(\lambda = \dfrac{h}{p}\)
where;
h = plank's constant
p = momentum of particle which is expressed as:
\(p = \dfrac{\sqrt{k^2+2kmc^2}}{c}\)
replacing the expression for (p) into \(\lambda = \dfrac{h}{p}\), we have:
\(\lambda = \dfrac{h}{\dfrac{\sqrt{k^2 +2kmc^2}}{c}}\)
\(\lambda = \dfrac{hc}{\sqrt{k^2+2kmc^2}} --- (1)\)
here;
c = velocity of light = 3 × 10⁸ m/s
h = 4.13 × 10⁻¹⁵ eV.s
i.e.
hc = (4.13 × 10⁻¹⁵ eV.s)(3 × 10⁸ m/s)
hc = 1240 eV.m
The electron's rest energy (mc²) = 0.511 × 10⁶ eV
For the elctrons;
the minimum accelerated voltage = 40kV
the maximum accelerated voltage = 100 kV
the minimum K.E of the electron K = eΔV
K = e × 40 kV
K = 40 KeV
K = 40 × 10³ eV
From equation (1);
\(\lambda = \dfrac{hc}{\sqrt{k^2 +2kmc^2}}\)
\(\lambda = \dfrac{1240 \ eV.nm}{\sqrt{(40 \times 10^3 \ eV)^2 +2(40 \times 10^3 \ eV)(0.511 \times 10^6 \ eV})}\)
\(\lambda = \dfrac{1240 \ eV.nm}{\sqrt{((1600000000) +(80000\times 511000))eV}}\)
\(\lambda = \dfrac{1240 \ eV.nm}{\sqrt{((1600000000) +(40880000000)eV}}\)
\(\lambda = \dfrac{1240 \ eV.nm}{\sqrt{(42480000000) \ eV}}\)
\(\lambda = \dfrac{1240 \ eV.nm}{206106.769 \ eV}}\)
\(\lambda = 0.062 \ nm\)
\(\mathbf{\lambda = 6.20 \ pm}\)
The maximum K.E of the electron K = eΔV
K = e × 10 kV
K = 10 KeV
K = 100 × 10³ eV
From equation (1);
\(\lambda = \dfrac{hc}{\sqrt{k^2 +2kmc^2}}\)
\(\lambda = \dfrac{1240 \ eV.nm}{\sqrt{(100 \times 10^3 \ eV)^2 +2(100 \times 10^3 \ eV)(0.511 \times 10^6 \ eV})}\)
\(\lambda = 0.037 \ nm\)
\(\mathbf{\lambda = 3.70 \ pm}\)
As a result, the spatial limits for the electron's range span from 6.02 pm to 3.70 pm.
Amino acid is to protein as
Answer:
Amino acids are the monomers that make up proteins. Specifically, a protein is made up of one or more linear chains of amino acids, each of which is called a polypeptide.
(hope it helped)
Explanation:
Jason wanted to find out how he could increase the number of popcorn kernels that pop when cooked. He hypothesized that more kernels would pop if he used more oil. To test this, he placed 100 kernels of “Pop Rite’ popcorn into a popcorn popper that contained different amounts of oil. He used the following amounts of oil: 5 mL, 10 mL, 15 mL, 20 mL, and 25 mL He conducted the test 3 times for each amount of oil. He then counted the number of kernels that had popped. Each time he heated the oil for 2 minutes and cooked the popcorn for 4 minutes.
Answer:
This question is incomplete, it is asking to identify the following variables in the question:
Independent Variable: DIFFERENT AMOUNTS OF OIL
Dependent Variables: NUMBER OF KERNELS THAT POPPED
Controlled Variables: TIME FOR POPPING, SAME BRAND OF KERNEL, SAME COOKING TIME
Explanation:
The independent variable of an experiment refers to the variable that the experimenter intentionally manipulates or changes for the purpose of effecting a measurable response in another variable (dependent variable). In this experiment, the independent variable is DIFFERENT AMOUNTS OF OIL used because this is what Jason changes in the experiment.
Contrarily, the dependent variable is the variable that the experimenter measures in response to the independent variable. In this experiment, Jason measures the NUMBER OF KERNELS THAT POPPED from using different amounts of oil. Hence, the NUMBER OF KERNELS THAT POPPED is the dependent variable.
Controlled variables or constants are those variables that must be kept constant or unchanged throughout the experiment in order not to influence the findings of the experiment. In this case, the following variables were kept constant for all the groups: TIME FOR POPPING , SAME BRAND OF KERNEL (Pop rite), SAME COOKING TIME (4 mins).
explain the leaching of plant nutrition
Answer:
In agriculture, leaching is the loss of water-soluble plant nutrients from the soil, due to rain and irrigation. ... As water from rain, flooding, or other sources seeps into the ground, it can dissolve chemicals and carry them into the underground water supply.
what do people need to survive under normal conditions?
which process could cause ice to form a thin layer over a lake
Answer:
condensation
Explanation: