1.

Select correct option/options

Q. 16th September is celebrated as ………. .. all over the world.

(a) Frog Day

(b) Environment Protection Day

(c) Earth Day

(d) Ozon Protection Day

2.

Select correct option/options

Q. Of the total water available on the earth, fresh water forms ………. .. per cent.

(a) 50

(b) 0.3

(c) 0.5

(d) 10

3.

Select correct option/options

Q.  Both ………. .. and ………. .. constituents are present in the soil.

(a) Harmful

(b) Biotic

(c) Abiotic

(d) Chemical

4.

Select correct option/options

Q. ……% of the earth’s surface is occupied by land

(a) 19

(b) 71

(c) 61

(d) 29

5.

Select correct option/options

Q. The layer of ozone gas absorbs ………. .. rays that come from the sun to the earth.

(a) Ultrared

(b) Ultrablue

(c) Ultraviolet

(d) Gama

6.

Select correct option/options

Q.  In ………. .. layer of the atmosphere the gases are totally absent.

(a) Exosphere

(b) Mesophere

(c) Troposphere

(d) Ionosphere

7.

Select correct option/options

Q. The proportion of gases is about …..% in the stratosphere

(a) 19

(b) 71

(c) 61

(d) 29

8.

Select correct option/options

Q. ….% of the earth’s surface is occupied by water.

(a) 81

(b) 71

(c) 65

(d) 29

9.

Select correct option/options

Q. In fire extinguishers ………. .. gas is used.

(a) Oxygen

(b) Nitrogen

(c) Hydrogen

(d) Carbon dioxide

10.

Select the correct sequence

Q. The sequence with which the layers of soil are present from top to bottom are as follows :

(a) Immature soil, humus, layer of soil, small rocks and bedrock.

(b) Humus, immature soil, layer of soil, small rocks and bedrock.

(c) Humus, layer of soil, immature soil, small rocks and bedrock.

(d) Humus, immature soil, layer of soil, bedrock, and small rocks