Deforestation means

Ill effect of deforestation is it

Increased level of carbon dioxide in the atmosphere traps the heat rays reflected by the earth causing an increase in the temperature on the earth. This is

Part of the earth which supports life where living beings exists is called ____

Variety of organisms existing on the earth, their interrelationships and their relationship with the environment is called

Species of plants and animals which are found exclusively in a particular area are called

Animals whose numbers are reducing to a level that they might face extinction are

____ is the Source book which keeps a record of all the endangered animals and plants.

Migratory birds fly to far off places in a particular season of the year because that place becomes

Reforestation means