Pretty sure it's A. They help control flooding, and also provide recreation and hydropower. If this is incorrect, I'm sorry, but I hope it helps
I think they’re
1.Lipid-derived
2.amino acid-derived
3. Peptides
Answer:
To reduce the amout you can go all solar powered to power your house. Fossil fuel is used to make heat. But now days most homes in the United States Of America use solar power or get electricity from wind mills.
The answer is A, Shelter. Area A has a larger population than Area B which tells us that Area A has an advantage. Predators, Flooding, and Disease would lower the population. Shelter us the only answer that would increase the population. Good luck, I hope that helps!
Should hopefully help you out!