Carbon is so abundant in living things even though oxygen is the most abundant element on Earth because carbon atoms can bond with one another to make chains and cyclic structures whereas oxygen atoms cannot form chains or cyclic structures.
The correct answer is the first option.
Answer:
destruction of biodiversity.
contamination of food chain.
lack of potable water.
mortality
diseases
Answer is true because its the closest so far in our galaxy
Nitrogen fixation is the compound
<span>False. RNA has four different bases, adenine, guanine, cytosine and uracil. The first three of these are also found in DNA, but when it comes to RNA, there is no thymine, it is in fact replaced by uracil as the base to compliment adenine. So RNA has adenine, but not thymine.</span>
