QuestionKart - Questions

cds- Question :

Consider the following statements :
1. Ozone is mostly found in the stratosphere.
2. Ozone layer lies 55-75 km above the surface of the Earth.
3. Ozóne absorbs ultraviolet radiation from the Sun.
4. Ozone layer has no significance for life on the Earth.
Which of the statements given above are correct?

A :

(a) 1 and 2

B :

(b) 1 and, 3

C :

D :

(d) 3 and 4

cds- Question :

Carbon dioxide is called a. green house gas because

A :

(a) it's concentration remains always higher than other gases

B :

(b) it is used in photosynthesis

C :

D :

(d) it emits visible radiation

cds- Question :

Arrange the following layers of atmosphere vertically from the surface of the Earth:
1. Mesosphere
2. Troposphere
3. Stratosphere
4. Thermosphere
Select the correct answer using the code given below:

A :

1-2-3-4

B :

2-1-3-4

C :

2-3-1-4

D :

3-4-2-1

cds- Question :

Ozone holes are more pronounced at the

A :

(a) Equator

B :

(b) Tropic of Cancer

C :

D :

(d) Poles

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