The use of cars can cause chemical pollution by the release of carbon in the air.
So that it can sustain different life that requires different environments. Angler fish, for example, require a dark and cold environment to thrive while tuna require a light and warm environment.
D.The term "set point<span>" is used to describe the </span>weight<span> at which your body likes to be and you stay there with little effort. Maybe you've lost 15 or 20 pounds in the past, only to gain it all back after a few months</span>
Carbon cycle and fossil fuels, I believe.