EASY
12th Bihar Board
IMPORTANT
Earn 100

‘Green Muffler’ is related to pollution of-
(a)Soil
(b)Air
(c)Noise
(d)Water

50% studentsanswered this correctly

Important Questions on Environmental Issues
EASY
12th Bihar Board
IMPORTANT
Noise pollution is measured in-

MEDIUM
12th Bihar Board
IMPORTANT
Photochemical smog consists of:

MEDIUM
12th Bihar Board
IMPORTANT
Snow blindness in human being is caused by:

EASY
12th Bihar Board
IMPORTANT
The thickness of ozone in a column of air from the ground to the top of atmosphere is measured in terms of:

EASY
12th Bihar Board
IMPORTANT
Which of the following is greenhouse gas?

EASY
12th Bihar Board
IMPORTANT
What do you mean by Ozone hole? What are main reasons for Ozone depletion?

MEDIUM
12th Bihar Board
IMPORTANT
Minimata disease is due to pollutant-

MEDIUM
12th Bihar Board
IMPORTANT
A secondary pollutant is
