Answer:
Could be multiple. C or A
Explanation:
Enzymes are required for respiration and respiration is exo thermic
Answer:B there were soon be insufficient food for the growing human populatio
According to a source the answer is <span><u>Cyanobacteria were the first organisms to produce oxygen in water, which then escaped into the atmosphere.</u>
These cyanobacteria species were the first ones to "produce" oxygen as a by-product of the photosynthetic mechanisms which enables organisms to make their own food. </span>
Answer:
porosity,minerals of softness,ease of dissolving
Explanation:
