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Which of the following is correct for se...

`Which of the following is correct for sewage discharge in a river?

A

At the discharge point BOD is high and fishes die

B

At the discharge DO is high

C

BOD increases downstream in river

D

From the discharge 50 km away, fishes die

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The correct Answer is:
A
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MOTION-ECOLOGY-EXERCISE -4
  1. Which of the following is not an exotic invading species?

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  2. India is the one of the 12 mega diversity countries of the world. It s...

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  3. Which of the following is correct for sewage discharge in a river?

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  4. Which of the following is true?

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  5. Which of the following show inverted pyramid of biomass?

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  6. Which of the following is an example of mutualism?

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  7. Which of the following is true:-

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  8. Match the following :-

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  9. Which of the following is not concerned with loss of biodiversity?

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  10. The figure is showing relative contribution of various green house gas...

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  11. Most animals that live in deep oceanic waters are:

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  12. One of the following statements is incorrect with reference of biodive...

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  13. One greenhouse gas contributes 14% to total global warming and another...

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  14. Biodiversity loss occurs due to (i) habitat loss and fragmentation ...

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  15. Euro II norms stipulate that sulphur be controlled at........ppm in di...

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  16. Select the correct labelling of below diagram

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  17. Match the column

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  18. Which of the following is not related with electrostatic preciptator a...

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  19. Distinct seasons and annual variation in precipitation leads to format...

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  20. Assertion:- Biotic conponents are as important as abiotic components f...

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