Read the text and fill in the gaps with the correct form of verbs as per subject and context.

Deforestation (a) _____ (mean) cutting down trees at random. It (b) _____ (cause) mainly by a group of dishonest peoplE- They cut trees (c) _____ (make) profit. Ordinary people also (d) _____ (use) trees as fuel and furniturE- Because of (e) _____ (cut) more and more trees, we are going (f) _____ (face) a great danger in the coming futurE- We (g) _____ (know) that oxygen (h) _____ (supply) by trees for animals. Without (i) _____ (take) oxygen, we cannot live a single moment. If trees (j) _____ (cut) down in this way, the amount of carbon dioxide (k) _____ (increase) in the atmospherE- As a result, the heat (l) _____ (rise). It (m) _____ (call) greenhouse effect. (n) _____ (enjoy) a peaceful life, we must plant more and more trees.