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Question-1
Which is a multipurpose river project of Orissa?

(A) Hirakud	(B) Bhakra Nangal Dam
(C) Kosi Project	(D) Mahi Project

Question-2
The soil which is very poor in mineral content is called:

(A) Red soil	(B) Laterite soil
(C) Black soil	(D) Alluvial soil

Question-3
How much water is always in the form of water vapour in the atmosphere?

(A) 10%	(B) 0.1%
(C) 0.001%	(D) 0.01%

Question-4
Which one of the following covers only about thirty percent of the total area of the earth's surface?

(A) Land	(B) Water
(C) Soil	(D) Climate

Question-5
Three fourths of the earth's surface is covered with:

(A) Land	(B) Water
(C) Soil	(D) Rock

Question-6
The water pollution in rivers is measured by the dissolved amount of:

(A) chlorine	(B) ozone
(C) nitrogen	(D) oxygen

Question-7
Physical factors responsible for soil erosion is / are:

(A) slope of the land	(B) intensity of rainfall
(C) velocity of wind blowing in that area	(D) all of them

Question-8
Respiratory diseases such as bronchitis and pneumonia increase due to:

(A) water pollution	(B) air pollution
(C) sound pollution	(D) soil pollution

Question-9
Which one of the following experiences the least annual range of temperature?

(A) Equator	(B) Tropic of Cancer
(C) Tropic of Capricorn	(D) Arctic Circle

Question-10
Sardar Sarovar Project is also known as:

(A) Farakk Project	(B) Mahi Project
(C) Narmada Valley Project	(D) Beas Project

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Std 8

CBSE

Practice in Related Chapters
Land, Soil, Water, Natural Vegetation and Wildlife Resources
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