Explanation:
Two important ways by which humans have affected the carbon cycle, especially in recent history, are: 1) the release of carbon dioxide into the atmosphere during the burning of fossil fuels, and 2) the clearing of trees and other plants (deforestation) that absorb carbon dioxide from the atmosphere
The answer is b because it's morphological
You could put salt-crystals outside during different times of the day when the temperature drops or rises.
The answer is A or C cuz it the stomach has more part to break down foods.