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Levart [38]
3 years ago
7

Which of the following is not a source of groundwater pollution? A.landfills b.septic tanks c.smoke stacks d.fertilizer

Biology
1 answer:
Crank3 years ago
8 0

The correct answer is c. smoke stacks.

Smoke stacks are chimneys or funnel shaped structures which emit smoke from a factory, vehicles and industrial set ups. Smoke stacks mostly discharge carbon dioxide and water vapor and oxides of nitrogen into the atmosphere. The exhaust released from smoke stacks cause air pollution. Air pollution can cause ailments like asthma and cancer. Thus, smoke stacks are not a source of water pollution.  

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Explain how scientists manipulate dna
Sholpan [36]

Scientists manipulate DNA by splitting it apart. They separate the DNA into segments with gel electrocophesis. From there, they can change up the chains and patterns in ways they please.

Answer: By splitting it into segments

walk in someone else's shoes

8 0
3 years ago
GIVING BRAINLIEST!
Elena-2011 [213]
You WILL lose thermal energy cuz heat will always flow from warmer to cooler.

Hope it helps!
5 0
3 years ago
In the peppered moth scenarios what is the variation? And the selection?
Morgarella [4.7K]

Variation is number of alleles for the wing color of the peppered moths. The wing color ranges from pure white to pure back.

Selection pressure is predation by birds.

Explanation:

In the wake of the industrial revolution, white-winged peppered moths had a large allelic frequency in the population compared to black-winged peppered moths. However, when the environment changed due to soot produced by industries (making the environment darker) white-winged peppered moths reduced while that of black moths increased.

This is because black moths were able to blend in and camouflage in the dark environment than white-winged peppered moths that stood out to their predators. Black moths, therefore, had an increased chance of reaching adulthood and passing their genes to the next generation. This increased the allelic frequency of black-winged peppered while that of white-winged moths reduced in the population.

Learn More:

For more on natural selection of peppered moths check out;

brainly.com/question/12918325

brainly.com/question/9231156

#LearnWithBrainly

8 0
3 years ago
Help needed thx btw.
xeze [42]
Which of the following amino acids can function as a neurotransmitter in the CNS?

1. Glutamic Acid it's because the vital inhibitory neurotransmitter in the CNS.

2. Huntington’s chorea has been linked with a deficiency in the amino acid ______.

Gaba  because its the chief inhibitory neurotransmitter in the mammalian central nervous system. 

3. Which of the following is not considered a monoamine?

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7 0
3 years ago
How are structure and function related in living things?
erica [24]

Answer:

Function and structure are related, because of a certain structure a living thing make contain makes the object function the way it does.

The relationship of a structure and function is the structuring levels from molecules to organism ensure successful functioning in all living organism and living system.

7 0
3 years ago
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