Human environment is greatly influenced by

Land, water and air together with all the living organisms make up our _____.

_____ environment is formed by human beings and their creations like roads, bridges, dams, etc.

The blanket of air that envelops the Earth is called the _____.
 

The French word 'environner' means to _____.

What do you understand by environment?

Write a short note on biosphere.

Describe ecosystem.