A. Write two sentences explaining how carbon returns from the air to the ground. ​

In the atmosphere, carbon is attached to oxygen in a gas which is called carbon dioxide and through the the process of photosynthesis, it is pulled from the air to produce food made from carbon for plant growth. And through food chains, the animals that eat plants get that carbon and so do the animals that eat those animals.

When an animal dies, their bodies as well as wood and leaves decaying brings the carbon into the ground.

when it is at an intermediate population density

idk and i also need to know where are those bio brainy acts lol