<span>The best definition of a fossil is any trace of an organism that lived in the past. Technically, a couple of the other choices (i.e. trace of an organism turned to rock, a hard part of an organism that has been preserved) could be considered within this group.</span>
Answer:
Electricity
Explanation:
30% of greenhouse gas sources is electricity (and heat which is relatively similar but I think electricity is correct)
1) A. Located in an enzyme
2) C. Synthesis of polymers from monomers
You're all good!
The correct answer is a. cilia
