Ecology and Environment MCQ Online

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You have to Choose the Right Answer of the Question given bellow. If you want to see the Correct Answer, you have to Choose any option of that question.

1. Greenhouse gases are –

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O3, O2, H2O2

CO, NO, SO2

NO2, SO2

CO2, CH4, CFC, O3 And H2O vapour

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2. Biochemical oxygen demand measures

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Polluting capacity of effluents

Thermal pollution

Industrial pollution

Dissolved oxygen needed by microbes to decompose organic waste

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3. The ozone layer is being depleted by

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(a) Smog

(b) Sulphur dioxide

(d) Chlorofluorocarbon

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4. The largest source of air pollution in metropolitan cities is

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(a) automobiles

b) pesticides

c) burning of coal

(d) industries (TCS)

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5. The region of the earth comprising water is known as:

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a) Lithosphere

(b) Hydrosphere

c) Biosphere

d) Atmosphere

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6. Water-borne diseases are:

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a) Beri beri & Rickets

(b) Bronchitis and asthma

c) Jaundice and typhoid

(d) Filaria and malaria

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7.Planting of trees is called:

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(a) Social forestation

(b) Agro forestry

(d) Deforestation

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8. Deforestation generally decreases

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(a) Rainfall

(b) Global warming

c) Soil erosion

(d) Drought

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9. The Chipko movement continues under the leadership of___

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(a) Salim Ali

(b) Zafar Futehally

( (c) Sunderlal Bahuguna

(d) Romulus Withkar

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10. Greenpeace started its functioning since__

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(a) 1970

(b) 1972

(d) 1974

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11. The study of interactions between living organisms and the environment is called as__

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(a) Ecosystem

(b) Ecology

(d) Psychology

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12. The term ecology was first defined by

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(a) Haeckel

(b) Ramdeo Mishra

c) Tansely

(d) Odum

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13. The role played by an organism in the ecological system is known as

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(a) Interaction

(b) Herbivory

(d) Niche

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14. Similar organisms which interbreed freely and produce fertile offspring constitute a

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a) Ecotype

(b) Species

(d) Community

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15. The environment modified by human activities is called.

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(a) Modem environment

(b) Urban environment

(d) Anthropogenic environment

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16. The short term properties of the atmosphere at a given place and time are together referred to as

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(a) Weather

(b) Season

d) Microclimate

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17. Aerial organisms are found in ___

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(a) Ecosystem

(b) Atmosphere

C) Lithosphere

(d) Hydrosphere

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18. Terrestrial organisms are found in_____

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a) Atmosphere

(6) Lithosphere

C) Hydrosphere

d) None of these

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19. The food production centre of the biosphere is ____

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a) Consumer

b) Producer

c) Decomposer

d) None of these

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20. Deforestation results in –

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(a) Ecological balance

(b) Heavy rainfall

d) Increase in soil fertility

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2l.______on inhalation dissolves in the blood haemoglobin more rapidly than oxygen

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(a) Carbon dioxide

(b) Carbon monoxide

(d) Sulphur dioxide

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22. Automobile exhausts consist of -

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a) Carbon dioxide

(b) Hydrocarbons, Carbon monoxide and Nitric oxide

c) Sulphur dioxide

(d) Nitrous oxide

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23. Gas leaked in the Bhopal Tragedy was -

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a) Sodium isothiocyanate

(b) Ethylisocyanate

c) Methylisocyanate

(d) None of the above

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24. The ultraviolet radiations in the stratosphere are absorbed by-

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a) Oxygen

(b) Oxides ofnitrogen

(d) Ozone

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25. Ozone layer occurs in -

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a) Troposphere

(b) Stratosphere

c) Thermosphere

d) lonosphere

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26. Taj Mahal is threatened due to

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a) Sulphur dioxide

(b) Carbon dioxide

c) Carbon monoxide

d) Water vapour

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27. The Ganga pollution is due to dumping of-

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(a) waste from forests

(b) food wastes

(d) domestic sewage and industrial effluent

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28. Chernobyl disaster occurred due to -

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(a) forest fire

(b) gas leakage

c) nuclear reactor explosion

(d) none of the above

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29. Jhum cultivation is prevalent in –

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(a) Madhya Pradesh

(6) North-East

C) hilly areas

d) Andaman and Nicobar islands

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30. Noise pollution hazards include –

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(a) High fever

(b) Stomach pain

d) None of the above

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