Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

The rapidly growing mass of phytoplankton coveting the surface water of a lake or pond is known as

A. Eutrophication
B. Water bloom
C. Water pollution
D. Water hyacinth
Answer» B. Water bloom
2.

Species which has restricted distribution ion is called

A. Eco species
B. Endemic
C. Sympatric
D. Allopatric
Answer» C. Sympatric
3.

How much of world's surface is covered by water?

A. 55%
B. 70%
C. 80%
D. 25%
Answer» C. 80%
4.

Spring tides occur when :

A. the moon, the sun and the earth are in the same line
B. the sun is closest to earth
C. the moon is farthest from earth
D. the earth is at right angles with the sun and the moon
Answer» B. the sun is closest to earth
5.

Rainfall caused by intense evaporation in equatorial areas is called .

A. Orographic rainfall
B. Cyclonic rainfall
C. Frontal rainfall
D. Convectional rainfall
Answer» E.
6.

Which place receives highest rainfall in the world?

A. Cherrapunji
B. Gangtok
C. Kohima
D. Imphal
Answer» B. Gangtok
7.

Which of the following is called "Blue Planer ?

A. Saturn
B. Earth
C. Jupiter
D. Mars
Answer» C. Jupiter
8.

The ocean which touches the Asian and American shores is-

A. Atlantic
B. Indian
C. Antarctic
D. Pacific
Answer» E.
9.

The deepest ocean is

A. Arctic
B. Pacific
C. Atlantic
D. Indian
Answer» C. Atlantic
10.

What is the percentage coverage of Tropical Forest on earth's landmass?

A. 7
B. 12
C. 17
D. 25
Answer» B. 12
11.

Hollywood is located in .

A. New Jersey
B. Florida
C. London
D. California
Answer» E.
12.

Most of the devastating earth-quakes are usually caused by

A. Eustatic movement
B. Isostatic adjustment
C. Collision of earth plates
D. Volcanic eruption
Answer» D. Volcanic eruption
13.

If a star is bigger than Sun, but not more than twice as big, it will turn into a

A. Pulsar
B. Maxima
C. Avenger
D. Discover
Answer» B. Maxima
14.

Which one of the four regions above the earth has smallest height (km.)?

A. Stratosphere
B. Mesosphere
C. Thermosphere
D. Troposphere
Answer» E.
15.

The 'Pacific Ring of Fire' is associated with

A. oil well fires
B. thermal power station
C. volcanoes and earthquakes
D. forest fires
Answer» D. forest fires
16.

The 'Pacific ring of fire ' is associated with :

A. oil well fires
B. thermal power station
C. volcanoes and earthquakes
D. forest fires
Answer» D. forest fires
17.

Which from the following, is a landlocked sea?

A. Timor Sea
B. Arafura Sea
C. Greeland Sea
D. Aral Sea
Answer» E.
18.

The largest current, because of its dark waters is known as the 'black current' and that is :

A. Gulf Stream
B. Kuroshio Current
C. California Current
D. Antarctic Current
Answer» C. California Current
19.

An island nation Maldives, is located in

A. Pacific ocean
B. Atlantic ocean
C. Southern ocean
D. Indian ocean
Answer» E.
20.

Troposphere is the hottest part of the atmosphere because-

A. it is closest to the Sun
B. there are charged particles in it
C. it is heated by the Earth's surface
D. heat is generated in it
Answer» D. heat is generated in it
21.

Which of the following is a Bio-logical method of soil conservations?

A. Contour fanning
B. Contour terracing
C. Gully control
D. Basin listing
Answer» B. Contour terracing
22.

Which one of the following does not cause soil erosion?

A. Deflation
B. Deforestation
C. Weathering
D. Overcropping
Answer» B. Deforestation
23.

Which one of the following is not the example of planetary winds?

A. Monsoon
B. Trade wind
C. Land and sea breezes
D. Chinook
Answer» E.
24.

Which of the following forest type is called as monsoon forest ?

A. Rain forest
B. Equatorial forest
C. Deciduous forest
D. Mountain forest
Answer» D. Mountain forest
25.

Equinox occurs when the sun is vertically above .

A. Tropic of Capricorn
B. Tropic of Cancer
C. Poles
D. Equator
Answer» E.
26.

The rhythmic rise and fall of ocean water twice in a day called

A. Tide
B. Ocean current
C. Wave
D. Water cycle
Answer» B. Ocean current
27.

In which of the following is the Great Barrier Reef located?

A. Coral Sea
B. Solomon Sea
C. Bismarck Sea
D. Arafura Sea
Answer» B. Solomon Sea
28.

To which natural vegetation belt do Sal and Teak trees belong?

A. Temperate forests
B. Equatorial forests
C. Tropical deciduous forests
D. Mixed forests
Answer» D. Mixed forests
29.

The soil which originate under tall- grass prairie vegetation is called

A. Black soils
B. Chestnut soils
C. Chernozem soils
D. Terra rosa soils
Answer» D. Terra rosa soils
30.

Which of the following reasons is responsible for lack of vegetation in the deserts?

A. Heavy volume of sands
B. Absence of B-horizon in the soil
C. High temperature
D. Lack of rainfall
Answer» E.
31.

Mushroom Rocks are the typical land forms seen in

A. River Valleys
B. Mountain tops
C. Coastal areas
D. Deserts
Answer» E.
32.

Which is the coldest among the following?

A. Mars
B. Earth
C. Pluto
D. Mercury
Answer» D. Mercury
33.

Which among the following statements is true regarding International Date line?

A. It is 180 Longitude
B. It is a straight line
C. It is a big circle
D. It is a curved line beyond earth
Answer» B. It is a straight line
34.

Why is the South Pole colder than the North Pole?

A. High altitude
B. More rainfall
C. Strong winds
D. Away from the sun
Answer» B. More rainfall
35.

An earthquake is also, known as

A. Teacher
B. Tremor
C. Temper
D. None of these
Answer» C. Temper
36.

The formation of 'Mushroom rock' in desert region is an example of

A. Deflation
B. Attrition
C. Abrasion
D. Erosion
Answer» D. Erosion
37.

Among the following States, has the lowest birth rate in India.

A. Kerala
B. Uttar Pradesh
C. Bihar
D. West Bengal
Answer» B. Uttar Pradesh
38.

Which of the following is called the twin of the earth?

A. Neptune
B. Venus
C. Mars
D. Saturn
Answer» C. Mars
39.

Which of the following exhibits unidirectional flow in an ecosystem?

A. Light
B. Energy
C. Water
D. Biomass
Answer» C. Water
40.

Which of the following metals contribute to to biomagnifications problem in the ecosystem?

A. Mercury
B. Chromium
C. (4) Copper
D. (4) Lead
Answer» B. Chromium
41.

What makes an ecosystem?

A. A living community and its environment
B. All the plants and animals of an area
C. Carnivores and herbivores of an area
D. Producers, consumers and decomposers in a particular locality
Answer» B. All the plants and animals of an area
42.

Which of the following asborbs part of the insolation and preserves earth's radiated heat?

A. Oxygen
B. Nitrogen
C. Water vapour
D. Carbon-dioxide
Answer» D. Carbon-dioxide
43.

The 'Grand Canyon' is on which of the river?

A. Colorado
B. Colombia
C. Ohio
D. Mississippi
Answer» B. Colombia
44.

Where are the hot deserts generally found?

A. On the eastern margins of the Tropics
B. On the western margins of the Tropics
C. Nearer the Equator
D. In the middle of the Continents
Answer» C. Nearer the Equator
45.

Mina is the tribe of -

A. Tripura
B. Sikkim
C. Rajasthan
D. Nagaland, Assam
Answer» D. Nagaland, Assam
46.

The word `dendlitic' is associated with

A. wind
B. waves
C. rivers
D. glaciers
Answer» D. glaciers
47.

The acceleration due to gravity at the equator

A. is less than that at the poles
B. is greater than that at the poles
C. is equal to that at the poles
D. does not depend on the earth's centripetal acceleration
Answer» B. is greater than that at the poles
48.

The Yellow river passes through which country?

A. Russia
B. China
C. USA
D. Australia
Answer» C. USA
49.

'Flash floods' are associated with

A. Thunderstorms
B. Cyclonic storms
C. Tsunami
D. Tornado
Answer» C. Tsunami
50.

"Tidal forest- is otherwise called :

A. Evergreen forest
B. Monsoon forest
C. Mangrove forest
D. Coniferous forest
Answer» D. Coniferous forest