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Environmental Pollution 1.

Which gas exists in the highest concentration in the Earth's atmosphere? a) hydrocarbons

2.

c) oxygen

d) nitrogen

e) carbon dioxide

Sulfur dioxide, carbon monoxide, and particulates are all examples of primary air pollutants. a) True

3.

b) ozone

b) False

Which of the following is true about carbon monoxide? a) single largest source is from internal combustion engines b) results from the actions of ultraviolet light on ozone c) causes acid rain d) leading cause of cancer in smokers e) none of the above is true

4.

5.

6.

Sulfur dioxide contributes to all of the following problems except a) photochemical smog

b) acid rain

c) death of vegetation

d) loss of biodiversity in aquatic ecosystems

What percentage of total world production of carbon dioxide do the developed countries contribute? a) less than 1%

b) about 25%

c) about 50%

d) about 75%

According to the United Nations Intergovernmental Panel on Climate Change, the global average temperature has increased by 0.3-0.6째C and the water level has increased by 10-25 cm in the last 100 years. a) True

7.

b) False

Ozone depletion is caused by a) nitrous oxide

b) carbon dioxide

c) chlorofluorocarbons d) methane

8.

Which of the following is an air pollutant? (a) Nitrogen (b) Carbon dioxide (c) Carbon monoxide (d) Oxygen

9.

Which of the following groups of plants can be used as indicators of SO pollution of air? (a) Epiphytic lichens (b) Ferns (c) Liver worts (d) Horn worts


10.

Which of the following on inhalation dissolved in the blood hemoglobin more rapidly than oxygen? (a) Sulphur dioxide (b) Carbon mono-oxide (c) Ozone (d) Nitrous oxide

11.

Smog is: (a) A natural phenomenon (c) Is colourless

(b) A combination of smoke and fog (d) All of the above

12.

Which of the following air pollution control devices is suitable for the removing the finest dust from the air? (a) Cyclone separator (b) Electrostatic precipitator (c) Fabric filter (d) Wet scrubber

13.

Air pollution from automobiles can be controlled by fitting: (a) Cyclone separato (b) Electrostatic precipitator (c) Catalytic converter (d) Wet scrubber

14.

Taj Mahal at Agra may be damaged by: (a) Sulphur dioxide (b) Chlorine (c) Hydrogen (d) Oxygen

15.

Gas leaked in Bhopal tragedy: (a) Methyl isocyanate (c) Ethyl isocyanate

(b) Potassium isothoiocynate (d) Sodium isothiocyanate

16.

Excess fluoride in drinking water is likely to cause: (a) Blue baby syndrome (b) Fluorosis (c) Change in taste and odour (d) Intestinal irritation

17.

Fluoride pollution mainly affects: (a) Kidney (b) Brain (c) Heart

(d) Teeth

18.

Disease caused by eating fish inhabiting mercury contaminated water is: (a) Bright’s disease (b) Hiroshima episode (c) Mina-mata disease (d) Osteosclerosis

19.

Which of the following is not a marine pollutant? (a) Oil (b) Plastics (c) Dissolved oxygen (d) All of the above

20.

Noise is: (a) Loud sound (c) Unwanted sound

(b) Sound of high frequency (d) Constant sound

21.

Sound becomes hazardous noise pollution at decibels: (a) Above 80 (b) Above 30 (c) Above 100 (d) Above 120

22.

Which of the following is a major source of thermal pollution in water bodies?


(a) Sewage treatment plant (c) Thermal power plant 23.

(b) Solid waste disposal sites (d) All of the above

The highest moisture content is in: (a) Garbage (b) Rubbish (c) Hospital waste

(d) Agricultural waste

24.

High level radioactive waste can be managed in which of the following ways? (a) Open dumping (b) Composting (c) Incineration (d) Dumping in sealed containers

25.

Biomedical waste may be disposed of by? (a) Incineration (b) Autoclaving

(c) Land filling (d) Both (b) and (c)

26.

Which of the following is a biodegradable organic chemical/substance? (a) Plastics (b) Oils (c) Pesticides (d) Garbage

27.

The disease Cholera, Typhoid and Jaundice are caused due to a) Air Pollution

28.

c) Water Pollution d) Soil Pollution

A great deal of indoor air pollution comes from ________. a)

29.

b) Noise Pollution

outdoor pollution b) carbon monoxide c) cooking

d) carpets and furniture

Some harmful elements which after dissolving in water cause water pollution are: Mercury (Hg), Arsenic (As), Lead (Pb), Cadmium (Cd)

30.

Number of mineral elements required by plants for their growth a) 16

31.

c) 10

b) 6

c) 10

d)

b) Light Years

c) Newton

d) Calorie

Diseases related to respiratory organs are increasing due to a)

35.

c) Noise Pollution

Intensity of noise is measure in a) Decibels

34.

d) 13

Aeromatic Hydrocarbon present in oils is a major cause of a) Marine Pollution b) Air Pollution

33.

d) 13

On an average how many of these elements are found in soil a) 16

32.

b) 6

Noise

b) Smoke

c) Radioactive materials

d) None of these

Most harmful pollutant a) Noise

b) Radioactive Waste

c) Smoke

d)


36.

This substance when mixes with water vapour can cause acid rain a) Carbon dioxide

37.

c) Sulphur di oxide d) Nitrogen

Gases responsible for green house effect a) Carbon dioxide

38.

b) Oxygen

b) Nitrogen dioxide c) Chloro Floro Carbon d) All of these

Ozone layer depletion is due to a) Carbon dioxide b) Nitrogen dioxide c) Chloro Floro Carbon d) Sulphur Dioxide

39.

40.

Green Belt around Industries and Roads help in a) Reducing Noise Pollution

b) Reducing Air Pollution

c) Reducing Water Pollution

d) All of these

Which of the following is biodegradable? a) Plastic

41.

b) Husk

b) Thyrosis

b) Cancer

c) Peace

d) Science

c) Sirosis

d) None of these

c) Lung Disease

d) Cilicosis

c) Carbon dioxide

d) Hydrogen

Gas responsible for Global Warming

Which gas leaked in the Bhopal Gas Tragedy? a) Methy Iso Cyanide c) Methyl Acetate Gas

48.

c) Ammonia d) S.P.M

Workers working in Coal Mines suffer from

a) Nitrogen Dioxide b) Sulphur Dioxide 47.

d) Vegetable Waste

Workers working in Mica Mines suffer from

a) Pthaleseamia 46.

b) Detergents

b) Forestry

a) Silicosis 45.

c) Agricultural Waste

“Amrita Devi Puraskar� is given in the field of a) Literature

44.

d) Human/Animal Waste

Main Water Pollutant is a) Industrial Waste

43.

c) Oxides

Which of the following is non-biodegradable? a) DDT

42.

b) DDT

b) Methyl Alcohol Gas d) Methyl Carbonate Gas

Frequency of sound in noise free zone a) 50 dB

b) 60 dB

c) 40 dB

d) 30 dB


Ecosystem 1.

Primary Source of Energy for all life on earth is a) Sun

2.

c) Stars

d) Water

_______________ are organisms that break down and obtain energy from dead organic matter. a) Producers

3.

b) Moon

b)

Decomposers c)

Autotrophs

d)

Herbivores

During _______________, autotrophs use light energy to convert carbon dioxide and water into oxygen and energy-rich carbohydrates such as sugars and starches. a) Chemosynthesis

4.

b) Photosynthesis

c) Evaporation

d) nitrogen fixation

A(n) ________________ is a diagram that shows the relative amounts of energy or matter contained within each trophic level in a food chain or food web. a) ecological pyramid

5.

b) biosphere

c) biome

d) green revolution

An organism that obtains energy by eating animals are known as _______________. a) carnivore b) herbivore c) detritivore d) producer

6.

Which of the following are producers? a) Carnivores

7.

b) Herbivores

b) Chemosynthesis

c) Abiotic & Biotic Components

c) Phylosynthesis

__________ start the food web. a) Grass

10.

b) Producers & Consumers

Process by which plants make food‌.. a) Photosynthesis

9.

d) None of these

Main Components of Ecosystem are a) Animals & Plants

8.

c) Plants

b) Deer

A food chain depicts

c) Mouse

d) Lion

d) None of these


a) Food transfer 11.

b) Tastes

c) Energy flow

d) None of these

River is a ____________________ ecosystem. a) Marine Ecosystem b) Pond Ecosystem c) Freshwater Ecosystem d) all of these

12.

Dark Zone of sea is called ___________ a) Profundal Zone b) Littoral Zone

13.

b) Xerosere

c) Lithosere

d) None of these

b) Xerosere

c) Lithosere

d) None of these

b) Xerosere

c) Lithosere

d) None of these

b) Succession

c) Transference

d) Displacement

b) Zooplankton

c) Parasites

d) Copepods

c) Parasites

d) Copepods

Microscopic floating animals________ a) Phytoplankton

21.

d) Lithospheric Zone

Microscopic floating plants ________ a) Phytoplankton

20.

c) Limnetic Zone

To give space to other ecosytems is_______________ a) Replacement

19.

b) Littoral Zone

When mountain ecosystem is replaced by other ecosystems the succession is ____________ a) Hydrosere

18.

d) Lithospheric Zone

When desert ecosystem is replaced by forest ecosystem the succession is ____________ a) Hydrosere

17.

c) Limnetic Zone

When aquatic ecosystem is replaced by land ecosystem the succession is ____________ a) Hydrosere

16.

b) Littoral Zone

Zone where effective light reaches is called ________________ a) Profundal Zone

15.

d) Lithospheric Zone

Zone that starts from surface to nearly 6m deep is called ____________ a) Profundal Zone

14.

c) Limnetic Zone

b) Zooplankton

Incomplete ecosystem is found in ____________


a) Forests 22.

d) Rivers

d) Desert

c) Deep Ocean

c) High Mountains

d) Desert

b) Marine Ecosystem

c) Freshwater Ecosystem d) All of these

Alpine grass is found in ___________ a) Deserts

26.

b) Mountains

Salts are abundant in ________ a) Pond Ecosystem

25.

d) Desert

Flat and big leaves are found in _____________ a) Rainforest

24.

c) Deep Oceans

Animals that adapt in adverse situations are found in __________ a) Forests

23.

b) Mountains

b) Rivers

c) Mountains

d) None of these

Eusterite ecosystem is found in__________ a) Union of River and Ocean b) Union of River and Lake c) Union of River and Pond d) Union of River and Desert

27.

The word ecology was first proposed by a zoologist named ___________ a) E. Haeckel

28.

b) Two directional

c) Multidirectional

d) None of these

b) Carbohydrate

c) Glucose

d) Nitrogen

Pyramid of number in a grassland ecosystem is a) Always inverted

31.

d) Hilaire

Which of the following is an inorganic component a) Protein

30.

c) M. E Clark

Energy flow in food web is a) One directional

29.

b) Geoffroy

b) Always upright

Pick up the correct food chain

c) Both a) and b)

d) Spindle shaped


a) grass___chameleon___insect___bird b) grass___fox____rabbit___bird c) phytoplankton___zooplankton___fish d) Fallen leaves___bacteria____insect 32.

Pyramid of number deals with a) Species in area b) Subspecies in community c) Individuals in community d) Individuals in a trophic level

33.

The food relation from grass__deer__tiger__decomposer is called a) food chain b) food web c) trophic level

34.

The energy transferred to the next level a) decreases b) increases

35.

b) Producers

b) Remains unchanged

c) Vertical

b) Hydrosphere

The pyramid of number is inverted in the case of a) parasitic food chain b) Grassland ecosystem c) Forest ecosystem d) lake ecosystem

39.

d) Herbivores

d) Variable

Abiotic components include a) Atmosphere

38.

c) Chemotrophs

The pyramid of energy in a food chain is a) Inverted

37.

c) Remains the same d) None

The first order consumers are called a) Autotrophs

36

d) energy flow

Pyramid of energy in terrestrial ecosystem is

c) Lithosphere

d) all of these


a) upright 40.

b) inverted

c) spindle shaped

Upper part of sea/aquatic ecosystem contains (a) plankton (b) nekton (c) plankton and nekton (d) benthos.

41.

What is true of ecosystem? (a) primary consumers are least dependent upon producers (b) primary consumers out-number producers (c) producers are more than primary consumers (d) secondary consumers are the largest and most powerful.

42.

The dominant second trophic level, in a lake ecosystem, is (a) phytoplankton (b) zooplankton (c) benthos (d) plankton.

43.

In a biotic community, the primary consumers are (a) detritivores (b) herbivores (c) carnivores (d) omnivores.

44.

Which of the following is the most stable ecosystem? (a) mountain (b) ocean

45.

(c) forest

(d) desert.

The sequence of energy flow through a food chain is a . primary consumers- producers- higher order consumers. b . producers- higher order consumers- primary consumers. c . higher order consumers- primary consumers- producers. d . primary consumers- higher order consumers- producers. e . producers- primary consumers- higher order consumers.

46.

Fauna is used for

d) irregular


a) plants 47.

b) animals

b) 75%

b) Darwin

d) none of above

c) 40%

d) 90%

c) Odem

d) Tensle

The name of the bird included in Red Data Book which migrates from Siberia to Bharatpur in India a) Black Necked Crane

51.

c) both

The hypothesis of ecological pyramid was given by a) Alten

50.

d) none of above

Energy lost from one trophic level to the next trophic level is a) 20%

49.

c) both

Flora is used for a) plants

48.

b) animals

b) Indian Koel

c) Pigeon

d) Siberian Crane

The study of genetic material in the plant or animal cell is situated in a) Genetic Diversity b) Species Diversity c) Ecosystem Diversity

52.

Rajasthan is at No. 1 in terms of production value of a) Copper, Lead & Zinc b) Iron, Magnesium & Silicon c) Cobalt, Nickel & Aluminium d) None of the above

53.

The aim of farm forestry is a) To grow trees of fruits b) To plant trees along with farming c) To grow medicinal plants d) None of the above

54.

The full form of ONGC is a) Oil & Natural Gas Commission b) Oil & Neutral Gas Commission

d) none of these


c) Oil & Neon Gas Commission d) Oil & Nitrogen Gas Commission 55.

Wind based power plant is situated in a) Kajri, Jodhpur b) Khetri, Jhunjhunu c) Jawar, Udaipur d) Devgarh, Chittorgarh

56.

The problem related with irrigation through canals is due to:a) Increase in salinity b) Increase in water pollution c) Increase in marshy lands d) None of the above

57.

Ultraviolet radiation brings about:a) Skin Cancer b) Lung Cancer c) Mouth Cancer d) Liver Cancer

58.

Rajasthan forest biosphere project started in:a) 1972

59.

b) 1966

c) 1 Oct - 7 Oct

d) 1 Nov - 7 Nov

b) Duck

c) Ostrich

d) Bustard

How many hotspots of biodiversity are identified in the world till now:a) 20

62.

b) 1 Dec - 7 Dec

Extinct bird of Mauritius is a) Dodo

61.

d) 1995

Wild animals week observed from a) 1 Jan - 7 Jan

60.

c) 1955

b) 35

Nuclear Power generates:-

c) 25

d) 83


a) Photo Chemical Pollution b) Sulphur dioxide c) Air Pollution d) Thermal Pollution 63.

The most dangerous radioactive air pollutant is:a) Strantium 90

64.

b) P 32

c) Ca 40

d) Ca 90

Which one is not biodegradablea) Radioactive Substances b) Bagasse

c) Molasses d) Aquatic Wastes

Q.

Name the following:-

1.

Nuclear power generates - Thermal pollution

2.

The most dangerous radioactive air pollution is - Strontium 90

3.

Term Nuclear Winter is associated with - Aftermath of a nuclear holocaust

4.

Pollution caused by electric power plants - Thermal pollution

5.

Gas liberated in Bhopal Gas Tragedy - Methy Isocynate

6.

Coolant which is commonly used in freezing out sampling at - 183oC is - Liquid Oxygen

7.

Biological oxygen demand measures - Dissolved oxygen needed by microbes

8.

Disease caused by mercury pollution - Minamata

9.

DDT not effective for killing mosquitoes because - mosquitoes have developed adaptive resistance to pesticides

10.

DDT is a - Non Biodegradable pollutant

11.

Full form of DDT - dichloro diphenyl trichloroethane

12.

Biochemical oxygen demand means - Amount of nutrients taken up by the micro organisms present in the water

13.

Major air pollutants in cities like Mumbai & Kolkata - Carbon Monoxide and Oxides of Sulphur

14.

The Mathura Refinery is found to reduce the shine of Taj Mahal by - Acid Rain

15.

Ganga as it flows becomes most polluted at - Kanpur

16.

River Periyar gets polluted mainly from - Chemical Factories

17.

In Miminata Bay, Japan, which animal remained free from Minimata Disease - Rabbit

18.

Date of Super Cyclone of Orissa (1999) - 29th Dec


19.

The worst environmental hazards created accidents in nuclear power plant & gas tragedy respectively in - Ukrain in 1986 & Bhopal in 1984

20.

Reducing agent which is used as a medium for collecting SO2 which inhibits the formation of So3 is - Isopropanol

21.

Type of bags used in Grab Sampling Methods - Plastic

22.

Most commonly employed method of collecting the samples - Absorption of gaseous pollutants into a liquid medium

23.

Size of particles used for sampling particles from dust fall collector is approximately - 10 mm

24.

Method which is popular for measurement of the mass concentration of the suspended particles less than 10 mm - High - Volume Filteration

25.

Radioactive Sr - 90 can enter and accumulate in human body through - Food Chain

26.

UV - Radiations from sunlight cause the reaction that produce - SO2


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