How exactly do stomata open and close? How do guard cells work? Specifically, explain the roles of ions and any plant hormones.

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

✿   this landform has a high elevation and a high relief

✿   this landform is a mountain

the answer is c.) there is a warm front in region a and a stationary front in region b.