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The green scum seen in the freshwater bo...

The green scum seen in the freshwater bodies is

A

red algae

B

green algae

C

blue-green algae

D

both (b) and (c)

Text Solution

Verified by Experts

The correct Answer is:
D
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GRB PUBLICATION-ENVIRONMENTAL ISSUES-NCERT Corner (Exemplar Problems)
  1. Choose the incorrect statement.

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  2. Among the following which one causes more indoor chemical pollution ?

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  3. The green scum seen in the freshwater bodies is

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  4. The loudness of a sound that a person can withstand without discomfort...

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  5. The major source of noise pollution, worldwide is due to

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  6. Match correctly the following and choose the correct option. The ...

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  7. Catalytic converters are fitted into automobiles to reduce emission of...

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  8. Why is it necessary to remove sulphur from petroleum products ?

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  9. Which one of the following impuritites is easiest to remove from waste...

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  10. Which one of the following diseases is not due to contamination of wat...

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  11. Nuisance growth of aquatic plants and bloom-forming algae in natural w...

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  12. Algal blooms impart a distinct colour to water due to

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  13. Match the items in column I and column II and choose the correct optio...

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  14. In the textbook you came acroos Three Mile Island and Chernobyl disast...

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  15. Select the correct option:

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  16. Which of the following statement/s regarding deforestation is/are wron...

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  17. The diagram of a scrubber is given below. Identify A, B, C and D and s...

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  18. Diagrammatic view of an electrostatic precipitator is given below. Ide...

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  19. Which of the following statements is not true?

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  20. Given pie-diagram represents the relative contribution of various gree...

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