Answer: b
Explanation:
no environmental exposure has been proved
It would be B, contour plowing
The polarity of water allows it to dissociate ionic and other polar compounds, thus allowing many important chemical reactions to occur. Those reactions are called aqueous reactions. Most of the reactions that sustain life are aqueous with water acting as the "universal solvent".
Gametes that are motile are often called sperm.
Answer:
Population size decreases
