Write about the causes of ozone hole.

Important Questions on Environmental Issues

HARD

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 19

 State the effects of ozone depletion.

MEDIUM

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 20

What is deforestation? Mention the causes and effects of deforestation.

HARD

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 21

Write about the Chipko movement.

HARD

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 22

Discuss the role of women and communities in protection and conservation.

MEDIUM

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 23

Discuss briefly the greenhouse effect.

HARD

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 24

How water and air are polluted ?

EASY

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 25

Write about global warming gases.