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notsponge [240]
3 years ago
5

What are two roles living things play in soil formation?

Chemistry
1 answer:
Studentka2010 [4]3 years ago
8 0
Soil Formation<span>:- </span>Living<span> Organisms. Plants, animals, and micro-organisms (fungi and bacteria) all affect </span>soil formation<span> by producing or contributing to humus production. The amount of humus in a </span>soil<span> is a result of how much plant material has been incorporated into it.</span>
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Which one of these complementary base pairs can form three hydrogen bonds?
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Answer:

Option D is the correct answer

Explanation:

There are three hydrogen bonds formed between Guanine and Cytosine base.  

The first hydrogen bond is formed between the oxygen atom on Carbon-6 (C-6) of guanine, and one of the hydrogen atoms attached to the Nitrogen atom (i.e the one of the hydrogen atoms in the amino group) on the Carbon-4 (C-4)of the cytosine base.  

The second hydrogen bond is formed between the hydrogen atom on Nitrogen-1 (N-1) of the guanine base and Nitrogen-3 (N-3) of the cytosine base.

The third hydrogen bond exist between one of the hydrogen atoms in the amino group attached to the second Carbon (C-2) of the guanine base, and the oxygen atom attached to the second Carbon (C-2) of the cytosine base.  

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3 years ago
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3 years ago
A graduated cylinder contains 20.5 mL of water. What is the new water level after 35.2 g of silver metal with a density of 10.5
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alisha [4.7K]

When an object reflects all light, you will see white light.

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