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.

What is the official name of IUCN?

A. orld Wide Fund for Nature
B. nternational Union for Conservation of Nature and Natural Resources
C. nited Nations Environment Programme
D. nited Nations Educational, Scientific and Cultural Organization
Answer» C. nited Nations Environment Programme
2.

_______ is a marine tortoise which shows the unique phenomenon "arribada".

A. live Ridley
B. tar Tortoise
C. ravancore Tortoise
D. & C
Answer» B. tar Tortoise
3.

Which of the following projects contribute to displacement?

A. am projects
B. rban infrastructure projects
C. ransportation projects
D. ll the above
Answer» E.
4.

One atom of chlorine can destroy over__________ molecules of ozone.

A. 00000
B. 0000
C. 5000
D. 000
Answer» B. 0000
5.

Hippocrates mentioned air pollution in__________ BC.

A. 00
B. 00
C. 20
D. 54
Answer» B. 00
6.

The average temperature of the earth is about__________ degree F.

A. 7
B. 9
C. 7
D. 5
Answer» C. 7
7.

What is UNCED?

A. nited Nations Conference on Education,
B. nited Nations Conference on Environmental Day
C. nited Nations Conference on Environment and Development
D. one of these
Answer» D. one of these
8.

Noise is _______________

A. uge sound
B. ound of vehicles
C. ndesirable and unwanted sound
D. ound of crackers
Answer» D. ound of crackers
9.

Oil, coal and natural gas supply approximately__________ % of the energy used in the United States

A. 0
B. 5
C. 0
D. 1
Answer» E.
10.

A red shirt

A. electively absorbs red wavelenghts of visible light and scatters the rest
B. electively scatters red wavelenghts of visible light and absorbs the rest
Answer» C.
11.

_________ is an on-site conservation method.

A. ational parks
B. orests
C. oo
D. arks
Answer» B. orests
12.

5th June is observed as

A. orld forest day
B. orld environment day
C. orld wildlife day
D. orld population day
Answer» C. orld wildlife day
13.

_________ is a source of all minerals.

A. ir
B. ater
C. ildlife
D. oil
Answer» E.
14.

All are insitu conservation efforts except

A. ational parks
B. anctuaries
C. oo
D. iosphere reserves
Answer» D. iosphere reserves
15.

The famous Minamata disease in Japan is due to the accumulation of____________in fishes.

A. admium
B. ercury
C. inc
D. ead
Answer» C. inc
16.

Succession initiated on large sand deposits or deserts is called

A. ydrosere
B. sammosere
C. erosere
D. xylosere
Answer» C. erosere
17.

Man and biosphere programme is affiliated with

A. NESCO
B. UCN
C. WF
D. IPO
Answer» B. UCN
18.

If you want to keep an object cool while exposed to direct sunlight,

A. ut it inside a brown paper bag
B. rap it in black paper
C. rap it in aluminum foil with the shiny side facing inward
D. rap it in aluminum foil with the shiny side facing outward
Answer» E.
19.

_________ causes loss of water because of seepage of water into the soil.

A. vaporation
B. ercolation
C. ranspiration
D. nfiltration
Answer» C. ranspiration
20.

Normally rain water is slightly

A. ure
B. cidic
C. oxic
D. xidize
Answer» C. oxic
21.

Animal dung is__________ waste.

A. iodegradable
B. on biodegradable
C. oxic
D. azardous
Answer» B. on biodegradable
22.

In the food relationship where the lion eats the wild beast, and the wild beast eats plants

A. he lion is the prey and the wilde beast is the predator
B. he lion is the predator and the wilde beast is the prey
C. he lion is the primary consumer and the wilde beast is the secondary consumer
D. he lion is the secondary consumer and the wilde beast is the primary consumer
Answer» E.
23.

Which one of the following ecosystem type has the highest annual net primary productivity?

A. ropical deciduous forest
B. ropical rain forest
C. emperate deciduous forest
D. emperate evergreen forest
Answer» C. emperate deciduous forest
24.

Approximately, 50% of total world species are present on

A. ropical rain forest
B. emperate rain forest
C. emperate deciduous forest
D. oral reefs
Answer» B. emperate rain forest
25.

Which of the following region has maximum diversity?

A. angrooves
B. emperate rainforest
C. aiga
D. oral reefs
Answer» E.
26.

_____________ is the poisonous gas leaked during Bhopal gas tragedy

A. IC
B. VC
C. eflon
D. ydrogen Sulphide
Answer» B. VC
27.

The cutting down of trees and setting them on fire and raising crops on the resulting ash is called:

A. yrolysis
B. hum
C. aungya system
D. hift cultivation
Answer» C. aungya system
28.

What is the animal symbol of W. W. F (World Wildlife Fund) ?

A. ed Panda
B. iant Panda
C. iger
D. angaroo
Answer» C. iger
29.

_________ power station at the mouth of the river blocks the flow of polluted water into the sea.

A. hermal
B. uclear
C. idal
D. ind
Answer» D. ind
30.

About ____ of the meteorologists and atmospheric scientists in the United States work in the field of weather forecasting.

A. ne-tenth
B. ne-half
C. hree-quarters
D. ine-tenths
Answer» C. hree-quarters
31.

The concept that 'population tends to increase geometrically while food supply increases arithmetically' was put forward by

A. dam Smith
B. harles Darwin
C. homas Malthus
D. tuart Mill
Answer» D. tuart Mill
32.

India ranks__________ amongst the wind-energy producing countries of the world.

A. irst
B. econd
C. hird
D. ourth
Answer» E.
33.

The lower limit of water availability in soil is known as

A. ield capacity
B. ypolimnion
C. hermocline
D. ilting point
Answer» E.
34.

Upper layer of water in a single body of water is known as

A. ypolimnion
B. pilimnion
C. hermocline
D. ydroline
Answer» C. hermocline
35.

Lines connecting points of equal temperature are called:

A. sobars
B. sotherms
C. hermals
D. hermographs
Answer» C. hermals
36.

Aquatic life is damaged by

A. ound pollution
B. ir Pollution
C. hermal pollution
D. ll of these
Answer» D. ll of these
37.

Harnessing of nuclear energy often causes ________pollution

A. ir
B. ater
C. hermal
D. oise
Answer» D. oise
38.

Frost typically forms on the inside of a windowpane (rather than the outside) because:

A. he inside of the pane is colder than the outside
B. here is more water vapor touching the inside of the pane
C. here is less water vapor touching the inside of the pane
D. one of the above
Answer» C. here is less water vapor touching the inside of the pane
39.

The main reason why vegetables take longer to cook in boiling water at high altitudes is because:

A. ater boils at a higher temperature with higher altitude
B. he temperature of the boiling water decreases with increasing altitude
C. here is less oxygen in the air at high altitude
D. aturation vapor pressure decreases with increasing altitude
Answer» C. here is less oxygen in the air at high altitude
40.

The sun emits its greatest intensity of radiation in:

A. he visible portion of the spectrum
B. he infrared portion of the spectrum
C. he ultraviolet portion of the spectrum
D. he x-ray portion of the spectrum
Answer» B. he infrared portion of the spectrum
41.

The first tropic level refers to

A. ll herbivores
B. ll green plants
C. unlight
D. ll animals
Answer» C. unlight
42.

Which one of the following is the non-renewable resource?

A. ater
B. xygen
C. unlight
D. oal
Answer» E.
43.

_________ are used for converting saline or brackish water into pure distilled water.

A. hoto voltaic cells
B. olar desalination systems
C. olar cookers
D. olar water-heating
Answer» C. olar cookers
44.

Boron, Zinc and Manganese are usually referred to as

A. icronutrients
B. acronutrients
C. oil Vitamins
D. BZ nutrients
Answer» B. acronutrients
45.

The presence of solid, liquid or gaseous compounds, which may not be normally present, or in excess concentration in the atmosphere is called

A. ir pollution
B. ater pollution
C. oil pollution
D. adioactive pollution
Answer» B. ater pollution
46.

The Expansion of SPCA

A. ociety for the Protection of Common Animals
B. ociety for the Prevention of Cruelty to Animals
C. ociety for the Prohibition of Cruelty to Animals
D. one
Answer» C. ociety for the Prohibition of Cruelty to Animals
47.

Nitrogen oxide and hydrocarbons released by automobiles interact to form

A. O
B. AN
C. O2
D. erosol
Answer» C. O2
48.

Pottery workers are at high risk of__________ lung disease.

A. sbestosis
B. sthma
C. ilicosis
D. ronchitis
Answer» D. ronchitis
49.

The major pollutant from automobile exhaust is

A. O
B. O
C. O2
D. oot
Answer» C. O2
50.

Autotrophs are ______________

A. onsumers
B. erbivores
C. aprophytes
D. roducers
Answer» E.