The farmers answer

The farmer grows trees around, so the trees can use photosynthesis to absorb the carbon dioxide and release oxygen. The farmer only burns the part with the small part of the sugar canes to repel the snakes. He doesnt burn the whole thing.

Photosynthesis and Respiration

Photosynthesis is is process where a plants make their own food (sugar). The process of this is water+carbon dioxide = sugar+oxygen. Through heat energy from the sun. Energy from the plant can be transfered to other living things. Such as an animal eats the plant then we eat the animal to recieve the plants anergy. Or just eat the plant directly. Finding the water for the plant can be done by the roots and is taken up by the xylem.

Another process to gain energy is called Respiration. Plants cannot perform respiraation, but animals can (including us). Its by sugar+oxygen = carbon dioxide +water +energy. It is assential the we get energy in our everyday life. The more energy we use the more respiration occurs.