the cutting down, or burning of trees in a large area

the unnecessary, extravagant, wrong or unwise use of something

used especially of plants and animals which are in danger of being made extinct, at risk of being harmed or destroyed

waste material in the form of liquid discharged from a sewage works, factory and others

the natural surroundings in which plant or animal usually lives

energy which is able to be used for a long time without causing damage to the environment

a person who lives in a place

made of material which will naturally decay relatively quickly because of the action of bacteria on it

to put material or an object through some kind of process that allows it to be used again

all the living creatures and plants in a particular area, together with their environment or habitat, often considered in relationship to each other

a substance designed to kill plants

the act of protection and preserving something, especially the environment

a kind of energy which is obtained from the sun's rays