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    CBSE

    Subject

    Biology
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    NEET Biology : Environmental Issues

    Multiple Choice Questions

    121.

    Which one of the following is mainly responsible for green houses effect?

    • SO2

    • CO2

    • CO

    • O2

    Answer
    • 122.

    Freon gas causing stratospheric O3 depletion is mainly released from

    • refrigerator

    • automobile

    • thermal power plant

    • steel industry

    Answer
    • 123.

    Which of the following diseases is related to cadmium pollution?

    • Minamata

    • Pneumoconiosis

    • Anaemia

    • Itai- Itai

    Answer
    • 124.

    SO2 pollution is indicated by

    • Desmodium (grasses)

    • Sphagnum (mosses)

    • Usnea (lichens)

    • Cucurbita (climbers)

    Answer
    • 125.

    Nutrient enrichment of a lake will cause

    • eutrophication

    • stratification

    • biomagnification

    • bioaccumulation

    Answer
    • 126.

    Which of the following is not a Green-house gas?

    • N2O

    • CFC

    • O3

    • CO2

    Answer
    • 127.

    Soil carried by gravity is

    • alluvial

    • eolian

    • colluvial

    • glacial

    Answer
    • 128.

    The true statement about 'green-house effect' is that it is caused by :

    • CO2 only

    • SO2 only

    • CO2 and SO2

    • CO2, CFC, CH4 and NO2 gases

    Answer

    • Short Answer Type

    129.

    What is bioaccumulation?

    Answer

    • Multiple Choice Questions

    130.

    For a clean environment, which one following is not essential?

    • Producer

    • Consumer

    • Decomposer

    • Polluter

    Answer
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