11)

What is the importance of the ozone layer for life on Earth?

SSC CHSL 2021

A)

It protects us from ultraviolet radiation.

B)

It protects us from acidic rainfall.

C)

It protects us from snowfall.

D)

It protects us from rainfall.

12)

Which of the following is NOT an effect of an earthquake?

SSC CHSL 2021

A)

Avalanche

B)

Heavy rainfall

C)

Tsunami

D)

Soil liquefaction

13)

______ plains are formed due to the weathering of soluble rocks such as limestone and dolomite.

SSC CHSL 2021

A)

Desert

B)

Deposition

C)

Karst

D)

Glacial

14)

Which part of soil has organic materials incorporated with the mineral matter, nutrients and water?

SSC CHSL 2021

A)

Horizon C

B)

Horizon A

C)

Horizon D

D)

Horizon B

15)

______ are gently sloping areas of the ocean basins

SSC CHSL 2021

A)

Oceanic deeps

B)

Continental shelfs

C)

Continental slopes

D)

Deep sea plains

16)

Which of the following types of rocks are formed by the lithification process?

SSC CHSL 2021

A)

Igneous rocks

B)

Metamorphic rocks

C)

Sedimentary rocks

D)

Primary rocks

17)

What do you call the point in the orbit of the moon or a satellite at which it is nearest to Earth?

SSC CHSL 2021

A)

Perigee

B)

Eclipse

C)

Apsis

D)

Apogee

18)

Which of the following factors is NOT responsible for the loss of fertility of agricultural land?

SSC CHSL 2021

A)

Higher cation exchange capacity of soil

B)

Alkalisation of soil

C)

Salinisation of soil

D)

Waterlogging

19)

Which of the following is a main species of moist deciduous forests?

SSC CHSL 2021

A)

Khejri

B)

Neem

C)

Sandalwood

D)

Amaltas

20)

IC 1101 is a ______.

SSC CHSL 2021

A)

satellite

B)

supernova

C)

asteroid

D)

galaxy