EASY
12th West Bengal Board
IMPORTANT
Earn 100

Which of the following metals causes harmful effects?

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Important Questions on Environmental Issues

EASY
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 17
Arsenic pollution causes
EASY
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 18
Which of the following element is responsible for Minamata disease?
EASY
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 19

Which one of the following is not a greenhouse gas ?

EASY
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 20
Photochemical smog is caused by a light mediated reaction between
EASY
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 21
Which one of the following is not an air pollutant?
EASY
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 22
Which of the following is not a greenhouse gas?
EASY
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 23
Maximum ozone depletion is caused by-
EASY
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 16 - Environmental Issues>EXERCISE>Q 24
Montreal Protocol aims at-