Answer:
b. can be highly variable depending on season and rainfall.
Explanation:
Answer:
I think it's A: Sodium is needed to generate an action potential
Answer:
its A, the roots of plants absorb the water used in the process of photosynthesis
The main function of the cell membrane is that regulates and monitors the movement of specific substances into and out of the cell, permitting only some substances to move across and not allowing others.
<span>4) It can cause air, soil, or water pollution. Those are hazards or risks 1-3 or gains and good things and thats not what the question is asking</span>
