Answer:
DNA is a linear molecule composed of four types of smaller chemical molecules called nucleotide bases: adenine (A), cytosine (C), guanine (G), and thymine (T). The order of these bases is called the DNA sequence.
A molecule of DNA is made up of a sugar, a nitrogenous base and one or more phosphate groups.
Explanation:
hope this helps you
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Filtering air.
This is the job of tree's, soil is made to do all these things but filter air.
