CUET 2025 Environment Science MCQs for Practice

Environment Science MCQ Question Answers for CUET 2025

Environment Science MCQs– Practice the Environment Science MCQs suitable for various Entrance Exams including CUET. Learn and practice Environment Science questions and answers. Environment Science MCQ questions are very helpful for various competitive exams. CUET is a Common University Entrance Test that is now mandatory to take admission to Central Universities in India. Environment Science MCQ questions are based on the latest CUET 2025 exam pattern and other entrance exams, so that you can have a fair idea about exam trends that will be followed for various entrance exams.

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1. What are the four factor endowments?

a.Material inputs used up in the process of production

b.National resources, labour, physical capital and human capital

c.International differences in climate

d.Types of technology

2. VOC stands for _______________

a.Viable organic components

b.Virtual organic carriage

c.Volatile organic components

d.Varying organic components

3. When was the World Wildlife Fund founded?

a.1961

b.1969

c.1965

d.1992

4. In order for natural selection to occur, what must there be amongst individuals of each generation?

a.Variation

b.Homogeneity

c.Harmony

d.Unimited access to resource

5. The ‘natural law’ perspective on international law is most associated with which IR theory

a.Marxism

b.Realism

c.Critical Theory

d.Liberalism

6. Which fertiliser produce acidity in soil

a.Sodium nitrate

b.Ammonium sulphate

c.Calcium ammonium nitrate

d.Calcium notrate

7. Advantages of green revolution

a. It increases the production of the crops

b.The usage of a high quantity of pesticides and insecticides affects the plants

c.It explains the modern farming method ,example, irrigation method,

d.In order to protect crops from different types of disease caused by pest as well as the damages caused by insects, the farmers started using pesticides and insecticides at a high amount.

8. The scope of land reforms does not include-

a.Tenancy reforms

b.All above

c.Intermediaries removal

d.Land reforms can encompass law

9. The environmental lapse rate is found to be:

a.– 6.5°C/km

b. 8.6°C/km

c. 5.6°C/km

d. 6.5°C/km

10. Which of the following is not poisonous to humans?

a.Stack Gases

b.None of the above

c.HCI

d.Flue gases

11. In which year was the Green Revolution started ?

a.1980

b.1965

c.1977

d.1978

12. Cast iron pipes are generally preferred to, because

a.Of longer life

b.Of moderate cost

c.Of ease to join

d.All of the above

13. The nitrate concentration in domestic water supplies, is generally limited to

a.30 ppm

b.45 ppm

c.10 ppm

d.15 ppm

14. Due to growing demand of which of the following product, tropical forest are being damaged the most

a.Beef

b.Sugar

c.Pork

d.Meat of Goat

15. What is the benefit of rain water storage?

a.Reduce the scarcity of water

b.Respite from floods

c.Recharging ground water level

d.Protection from soil erosion

16. What is the cause of the ‘Greenhouse effect’?

a.Nitrogen Dioxide

b.Nitrogen

c.Carbon Monoxide

d.Carbon Dioxide

17. Which of these political issues does not fall under Public International Law?

a.A Policeman torturing a criminal suspect in a acountry where this is not considered illegal

b.A disputed National Election

c.Mining on the seabed of an ocean outside of territorial waters

d.A country claming to own the moon

18. What type of chemical weathering is enhanced by acid rain?

a.Dissolution

b.None of the above

c.Hydrolysis

d.Oxidation

19. Ozone depletion is caused due to increase in the level of

a.Chlorofluorocarbon

b.Water Vapour

c.Carbon monoxide

d.Oxygen

20. Which of the following reduces the planet’s carrying capacity?

a.Technological improvement

b.Increase land erosion

c.Increase resources

d.reduced inequality

21. The Earth summit was organised by

a.UNICEF

b.UNESCO

c.UNCED

d.WHO

22. What is the biggest source of pollution in the world?

a.Automobile Laxity

b.Sewage and Garbage

c.Industrial Tributaties

d.Herbicide and Insecticide

23. What does the phrase “anthropogenic CO₂ emissions” mean?

a.Industrial CO₂ emissions

b.Natural CO₂ emissions

c.All of the mentioned

d.Human made CO₂ emissions

24. Which of the following is an air pollutant?

a.Carbon Monoxide

b.Nitrogen

c.Carbon Dioxide

d.Oxygen

25. Rio Summit is associated with

a.Ozone depletion

b.Convention on Biological Diversity

c.Green House Gases

d.Wet Lands

26. Which is the first zone of purification in a sand bed?

a.Schutzdecke zone

b.Autotrophic zone

c.Heterotrophic zone

d.Electrolytic zone

27. The Ozone hole over Antarctica was discovered in

a.1987

b.1985

c.1978

d.1975

28. For which of the following reasons, it is necessary to secure a large area for forest?

a.Absorption of carbon dioxide

b.Conservation of wild

c.More rain

d.Ecological balance

29. Quantity of soil to be taken for texture analysis

a.40g

b.30g

c.20g

d.10g

30. Which of the following gas affects human health by reducing the blood’s ability to carry oxygen to different parts of the body?

a.Carbon Dioxide

b.Nitrous dioxide

c.Carbon monoxide

d.Sulphur dioxide

31. The largest ecosystem of earth is

a.Hydrospere

b.Biosphere

c.Biome

d.Lithosphere

32. Which of the following is least likely to be an effect of global warming?

a.Loss of fertile delta region as for agriculture

b.Decreased rate of photosynthesis in vegetation

c.Increase frequency of hurricanes

d.Shrinking of the polar ice regions

33. Anthropogenic is a _______-

a.Natural Environment

b.None to fhe above

c.Both a and b

d.Modified Environment

34. International Trade is most likely to generate short-term unemployment in:

a.Industries in which there are neither imports nor exports

b. Industries that sell to domestic and foreign buyers

c.Import-competing industries

d.Industries that sell to only foreign buyers

35. What was the first economic theory of international trade to be developed?

a.The theory of mercantilism

b.The theory of absolute advantage

c.The Heckscher-Ohlin theory

d.The theory of comparative advantage

36. Land reforms policies in India have met with

a.None of the above

b.Tremendous success

c.Complete failure

d.Limited success

37. Soil colloidal particle shows the phenomena

a.All of the above

b.Flocculation

c.Plasticity

d.Adhesion and Cohension

38. According to the United Nations, the world’s major environmental problems include:

a.The quality of fresh water

b.Ozone depletion

c.All of the above

d.Deforestation

39. Global warming is expected to result in

a.Change in coastal line

b.All of these

c.Increase in sea level

d.Change in crop pattern

40. What term describes the idea that humans consider themselves to have a superior and fundamental place in the universe?

a.Egocentrism

b.Anthropocentrism

c.Narcissim

d.Ethnocentrism

41. Where is the secretariat of the Conference on Biological Diversity?

a.Italy

b.Montreal

c.Toronto

d.London

42. The demographic transition is

a.None of the above is correct

b.The period when crude birth and death rates are equal

c.The period between preindustrial and modern equality of crude birth and death rates

d.The period when both crude birth and death rates rise

43. The radiant energy received by the Earth from the sun is

a.Insolation

b.Refraction

c.Reflection

d.Radiation

44. The method of soil conservation in the coastal and dry regions where rows of trees are planted to check the wind movement to protect soil cover is called

a.Contour barriers

b.Rock dam

c.Shelter belts

d.Mulching

45. EL-Nino is

a.Warm Ocean Current

b.Another name of Typhoon

c.Sea Storm

d.Trophical Disturbance

46. Which of the following plants is extremely sensitive towards sulphur dioxide?

a.Onion

b.Tomato

c.Potato

d.Corn

47. The Biosphere is a region of earth which supports life. It includes- 1.Hydrosphere, 2.Lithosphere, 3.Stratosphere, 4.Troposphere

a.1,2 and 4

b.2, 3 and 4

c.1 and 3

d.1 and 4

48. Which of the following is a major health consequence of environmental degradation, especially in developing countries?

a.Winter kill

b.Biodiversity

c.Carbon sequestration

d.Lack of clean water

49. Many primates engage in social grooming, which is a very time-consuming activity. The main function of this is

a.To reinforce social bonds

b.To ensure the good health of all members of the group

c.To stimulate sexual activity

d. To remove parasites from other individuals

50. Altruism can be defined as

a.Working together for a common goal

b.An act that benefits the recipient at a cost to the donor

c.Ensuring that all individuals have equal access to resources

d.Buying patronising Band Aid records at Christmas

51. Transportation cost of trade affects:

a.Boundries bwteen tradable and non-tradable goods

b.Pattern of trade

c.All of the above

d.Global supply chains

52. Carbonates in water produce

a.Temporary hardness

b.Both a and b

c.Acidity

d.Permanent hardness

53. Long path optical measurement uses _____________

a.Both a and b

b.Ultraviolet radiation

c.None of the above

d.IR Radiation

54. Among the following climatic factors, which one has the least effect upon a terrestrial ecosystem?

a.Temperature variation

b.Conditions of sunlights

c.Wind

d.Availability of water

55. World Environmental day is celebrated on ________ every year.

a.1st October

b.1st December

c.1st May

d.5th June

56. The correct sequence in decreasing order of the albedo values of these ecosystem is::,1. Taiga,2. Tropical evergreen,3. Tropical deciduous,4. Tundra

a.4, 1, 3, 2

b.1,4, 2, 3

c.4, 1, 2, 3

d.1, 4, 3, 2

57. The first authoritative exposition of the national policy on tenancy reform is found in the document of the

a.Second Plan

b.First Plan

c.Third Plan

d.Fourth Plan

58. A no-trade world will have which of the following characteristics

a.There will be no distortions or externalities

b.All of the above

c.Countries will have same relative endowments of production factors

d.Consumers across countries will have identical and homogenous tastes

59. Among the following, the only secondary pollutant is:

a.Sulphur dioxide

b.Sulphur tera Oxide

c.Sulphur tetra oxide

d.Ozone

60. How is comparative advantage defined?

a.To produce and consume all goods without trade

b.You produce the things you are especially good at, and buy from others, the goods you are less efficient in producing.

c.Globalisation, growing economic linkages among countries

d.How the world actually works

61. What is 'HYV'

a.High yielding crops

b.Higer yeild variety

c.Decreased yielding variety

d.High yielding variety

62. During Inversion:

a.None of the above

b.Temperature remians constant

c.Temperature increases with altitude

d.Temerature decreases with altitudfe

63. What are some of the costs of a high fertility rate and rapid population growth?

a.Rapid labour fore growth

b.Diminshing returns to natural resources

c.increase in the ration of depenedent to working age population

d.All of the above

64. Which of the following types of pollution is Cultural eutrophication?

a.Thermal Pollution

b.Soil Pollution

c.Water Pollution

d.Noise pollution

65. Sustainable development means maximising

a.Economic growth

b.None of the above

c.The productivity of produced assets

d.Income inequality

66. Which of these is the chief court of the UN?

a.International Court of Justice (ICJ)

b.Permanent court of International Justice (PCIJ)

c.Eurpoean Court of Justice (ECJ)

d.International Criminal Court (ICC)

67. What sort of data describes meaning and experience?

a.Idiographic

b.Qualitative

c.Quantitive

d.Nomothetic

68. Male gorillas have relatively small testicles compared to those of a chimpanzee because

a.They live in large communities

b.They have a different diet

c.They have a lower level of sexual activity

d.The females exclusively mate one gorilla

69. Soil is eroded heavily due to deforestation, it affects the flowing of surface water badly. Which of the following is badly affected by these causes

a.Ecological system

b.Local plants

c.Climate

d.Human Resource

70. What is the ecological system integrating all living beings and their relationships?

a.Hydrosphere

b.Lithosphere

c.Biosphere

d.Total Wild life

71. What sort of data describes numerical data?

a.Nomothetic

b.Idiographic

c.Quantitive

d.Qualitative

72. The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was made in

a.Montreal

b.Florida

c.Geneva

d.Osaka

73. International trade forces domestic firms to become more competitive in terms of

a.Product price

b.The introduction of new products

c.All of the above

d.Product design and quality

74. Being able to adapt to changes in the environment is referred to as what?

a.Versatility

b.Survival of the fittest

c.Natural Selection

d.Evolution

75. The basic purpose of introducing land reforms has been adversely affected due to

a.poor implementation

b.All of these

c.Lack of political will

d.Shortcoming in legislation

76. Of the solar energy coming into the Biosphere, what percentage of it is actually used in photosynthesis?

a.Between 1% and 15%

b.Between 15% and 2%

c.Less than 1

d.More than 2 %

77. Long path optical measurement has a range of several kilometres.

a.Some of the statement is true but not completely

b.Some of the Statement is false but not completely

c.FALSE

d.TRUE

78. The concept of survival of the fittest refers to

a. The individuals who are the strongest and most likely to survive

b.The individuals who have characteristics that fit in best to the environment

c.The individuals who work out the most

d.The individuals who have characteristics that make them more attractive and hence more likely to get a mate

79. If a nation has an open economy it means that the nation:

a.Allows private ownership of capital

b.Has fixed exchange rates

c.Conducts trade with other countries

d.Has flexible exchange rates

80. Which one of the following ecosystems covers the largest area of the earth’s surface?

a.Grassland Ecosystem

b.Mountain Ecosystem

c.Marine Ecosystem

d.Desert Ecosystem

81. Environment includes

a.Abiotic Component

b.Oxygen and Nitrogen

c.Abiotic and iotic component

d.Biotic component

82. The air pollutants are mainly classified as____________

a.Point source and non-point source

b.None of the above

c.Primary and secondary pollutants

d.Natural or anthripogennic pollutants

83. How many of your first cousins (your uncle and aunt's children) would need to survive to maintain the genetic presence in the world as you?

a.64

b.16

c.32

d.8

84. Which of these is not an official source of Public International Law?

a.International Treaties

b.Custom

c.Verdicts of the International Criminal court (ICC)

d.The opinions of international legal experts

85. Which of the following is an important Greenhouse Gas?

a.Carbon Monoxide

b.Freon

c.Carbon Dioxide

d.Chlorofluorocarbon

86. The cause of reduction of forest coverage is

a.Rising Population

b.Manufacturing Industry

c.Agriculture

d.Tourism and Pilgrimage

87. Which has the maximum rate of deforestation?

a.Desert Zone

b.Northern Forest

c.Temperate Zone

d.Tropical Zone

88. The method of soil conservation in which rocks are piled up to slow down the flow of water which prevents gullies and further soil loss is called

a.Mulching

b.Contour barriers

c.Terrace Farming

d.Rock dam

89. Which of the following has maximum bio-diversity?

a.Rier

b.Tropical Region

c.Polar Region

d.Desert

90. The evolution of hominids is generally believed to have begun around how many years ago?

a.250,000

b.50,000

c.2.5 Million

d.50 million

91. Which of the following is a renewable source of energy?

a.Thermal Power

b.Natural gas

c.Hydro Electric power

d.Atomic Power

92. The phenomenon slickenside found in which soil

a.Inceptisol

b.Vertisol

c.Gelisol

d.Spodosa

93. Which of the following environments supports the growth of Mangrove Swamp?

a.Mixed

b.Equatorial

c.Monsoon

d.Tidal Flat

94. Which of the following represents the allowed rate of CO₂?

a.Less than 500 ppm

b.Less than 300 ppm

c.Less than 700 ppm

d.Less than 100 ppm

95. Disadvantages of green revolution

a.It increases the production of the crops

b.As the water and soil from the farming land are ruined either due to rain or flood, all the toxic content of pesticides and other chemicals present in the soil gets mixed with the nearby water source which leads to the death of aquatic organisms, mostly fish.

c.It decreases the production of the crops

d.In order to protect crops from different types of disease caused by pest as well as the damages caused by insects, the farmers started using pesticides and insecticides at a high amount.

96. Nitrogen oxide affects human health by__________

a.None of the above

b.Aggravating asthma Problem

c.Causing irritation to the eyes and skin

d.Decreasing blood's ability to transport oxygen

97. What was the green revolution based on ?

a.Planting more trees

b.Introduction of new plant varietiees

c.Planting of trees

d.Crop Production

98. The method of soil conservation in which different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash is called?

a.Rock dam

b.Mulching

c.Terrace Farming

d.Intercropping

99. Which of the following aquatic plants is effective in preventing the water-pollution caused by industrial waste?

a.Elephant Grass

b.Parthenium

c.Both b and c

d.Water Hyacinth

100. The yield rates of crops between 1950 and 1998

a.Dramitically declined

b.Slighlty declined

c.Dramatically increased

d.None of the above

101. The World’s largest biofuel plant has been established with a production capacity of 100 million litres per year, is located in

a.Brazil

b.India

c.USA

d.China

CUET 2025 Environment Science MCQ Question Answers – 100 MCQs for Practice

Environment Science MCQ Question Answers for CUET 2025

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