Answer:
In an ecosystem, what happens to the atoms of certain chemical elements, such as carbon, oxygen, and nitrogen? They move into and out of living systems. process in which chemical energy is used to produce carbohydrates. ... single-essential nutrient that limits productivity in an ecosystem.
Explanation:
I want to say D based on the my research
Answer:
I think it would increase the thickness of water
a term you can use could be <u>Variety</u> or a <u>Variant</u>