EASY
Earn 100

The primary source of organic pollution in freshwater bodies is:

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Important Questions on People, Development and Environment

EASY
Which of the following gases are not responsible for the greenhouse gas effect on Earth?
MEDIUM
Methane contributes towards global warming so it is called a _____ gas.
EASY

What was the aim of Ganga Action Plan initiated by the Union Government?
1. Streamlining the flow of the Ganga River.
2. Reduction of Pollution on Ganga River.
3. Efficient use of Ganga water for irrigation.
4. Using Ganga River for generating hydel energy.

HARD
Which constituent of the atmosphere is likely to change if the forest cover is removed?
EASY
Which of the following cities has been worst affected by urban smog in recent times?
EASY
Which of the following statements is not an objective of teaching EVS at the primary level?
EASY
The pollutant responsible for ozone holes is_____.
EASY
Arrange Column-II in the proper sequence to match it with Column-I. Choose the correct answer from the code given below:
Column I (Activity) Column II (Noise level)
(a) Hearing (i) 30 dB
(b) Whispering (ii) 1 dB
(c) Interference with (iii) 60 dB sleep
(d) Normal talk (iv) 30-50 dB
Codes: a  b  c  d
MEDIUM
The pollutants which came directly in the air from sources are called primary pollutants. Primary pollutants are sometimes converted into secondary pollutants. Which of the following belongs to secondary air pollutants?
EASY
One of the anthropogenic sources of gaseous pollutants chlorofluorocarbons (CFCs) in the air is:
EASY
The urbanization process accounts for the wind in the urban centers during nights to remain: