Test: Soil, Rocks & Minerals - 1 | 10 Questions MCQ Test

QUESTION: 1

Which among the following factors is not responsible for soil erosion?

A.
Ploughing of hill slopes
B.
Overgrazing by cattles
C.
Floods
D.
Deforestation
E.
None of these

Solution:

All of the factors like ploughing of hill slops, overgrazing , floods and deforestation are responsible for soil erosion.

QUESTION: 2

Which of the following is responsible for the continuous heating and cooling of rocks that finally forms soil?

A.
Air and water
B.
Sunlight and rain
C.
Plants and trees
D.
Plants and animals

Solution:

Sunlight and rain cause heating and cooling of rocks which by weathering gives rise to soil.

QUESTION: 3

Tall mud walls built on the sides of the rivers, to conserve soil are called:

A.
Valleys
B.
Terraces
C.
Bunds
D.
Bushes
E.
None of these

Solution:

QUESTION: 4

Which among the following is not a type of rock?

A.
Igneous
B.
Sedimentary
C.
Lava
D.
Metamorphic
E.
None of these

Solution:

QUESTION: 5

Match the following:

A.
(i - C), (ii - A), (iii - D), (iv - B)
B.
(i - C), (ii - D), (iii - A), (iv - B)
C.
(i - D), (ii - C), (iii - B), (iv - A)
D.
(i - B), (ii - D), (iii - C), (iv - A)
E.
None of these

Solution:

QUESTION: 6

When the earth day is celebrated?

A.
24 April
B.
5 June
C.
22 April
D.
29 June
E.
None of these

Solution:

QUESTION: 7

Soil erosion can be prevented by:

A.
Terrace farming
B.
Afforestation
C.
Building bunds
D.
All the above
E.
None of these

Solution:

QUESTION: 8

Which among the following is an example of metamorphic rock?

A.
Sandstone
B.
Limestone
C.
Marble
D.
Shale
E.
None of these

Solution:

Metamorphic rocks can be formed by pressure deep under the Earth's surface, from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates. Examples of metamorphic rocks include anthracite, quartzite, marble, slate, granulite, gneiss and schist.

QUESTION: 9

About 95% of earth?s crust is made up of which rocks?