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Wher from pollutants enter to the water sources?

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Complete the blanks. The entering of pollutants in a food chain is called _____(1). The tendency of polluntants to concentrate as they move from one trophic level to another is called ____(2).

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VGS PUBLICATION-BRILLIANT-OUR ENVIRONMENT-EXERCISE
  1. According to charles eiton

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  2. Name any two pesticides/insecticides you have heard about.

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  3. Wher from pollutants enter to the water sources?

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  4. How can you say fishes living in water having heavy metals in their bo...

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  5. What is the food chain that has been discussed in the above occurrence...

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  6. How did these disturbances affect the environment?

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  7. Is it right to eradicate a living organism in an ecosystem? How is it ...

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  8. Were the sparrows really responsible? What was the reason for the fall...

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  9. What was the impact of human activities on the environment?

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  10. Are al terrestrial ecosystems similar?

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  11. Why most of the food chains consist of four steps?

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  12. Why do the number of organisms get decreased as we move from producer ...

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  13. How are the food grains and cereals being stored in your house and how...

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  14. Researchers found that pollution levels increse during monsoon season....

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  15. Why did people also suffer from various disease after consuming fishes...

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  16. How did the campaign disturb the food chain in the field?

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  17. What do you suggest to stop/avoid the disturb the food chain in the f...

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  18. Fill in the blanks. Sparrow campaign was happened in () in the year ...

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  19. If we want to show a food chain consisting of grass, rabbit, snake and...

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  20. Draw the pyramid of number for the following food chains. (i) Banyan...

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