World Environment Day is celebrated on - 

Which is correctly matched? 

The following is true about ozone?

( A ) It is essential for respiration of animals and plants.

( B ) It absorbs ultraviolet rays.

( C ) Its percentage in air is almost 3 %.

( D ) It is used to disinfect water.

Select from the following a group of birds each member of which is able to see distinctly the object four times as far as we can see.

Chipko Movement' is related to?

Which of the following activities is responsible for the destruction of forests?

( A ) Mining of minerals

( B ) Weaving baskets from bamboo

( C ) Construction of dam

( D ) Making plates from leaves

( E ) Prepare land for agriculture

An object in which no light rays can pass through is called?

Which of the following is one of four biodiversity hot spots of India?