C
Because your DNA is made of nitrogen bases
Adenine
Guanine
Cytosine
Thymine
Carbon is released back into the atmosphere when organisms die, volcanoes erupt, fires blaze, fossil fuels are burned, and through a variety of other mechanisms.
Answer:
I would say by looking in a book.
Explanation:
If Abby wants to know HOW to find it, she will most likely find a book filled with information as to where it's located will be the most help. Hope this helps!