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What is Humus?...

What is Humus?

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Humus is

Humus is

Which soil horizon is rich in humus?

Which of the following organs in earthworms neutralizes humic acid present in humus?

In which type of forest is humus formed by dry and dead leaves?

Define the terms: Humus

Assertion : Humus serves as a reservior of nutrients . Reason: Humus is colloidal in nature.

Assertion : Humus makes the soil fertile. Reason : Humus is rich in organic matter

MBD -HARYANA BOARD-ORGANISM AND POPULATION-EXERCISE
  1. What is Humus?

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  2. Fill in the blanks with suitable words: The plants growing in saline s...

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  3. Fill in the blanks with suitable words: The optimal capacity of the or...

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  4. Fill in the blanks with suitable words: Rapid increase in human popula...

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  5. Fill in the blanks with suitable words: Mathematical expression of the...

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  6. Fill in the blanks with suitable words: Yeast cells grown in a culture...

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  7. Fill in the blanks with suitable words: Main cause of population expos...

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  8. State true or false: Frog shows aestivation in witners and hibernation...

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  9. State true or false: Cats and owls are ecological eqivalents.

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  10. State true or false: Term biocoenosis refers to ecosystem.

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  11. State true or false: Most important ecological factor is light.

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  12. State true or false: Sheep is a short-day animal,while starling is a l...

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  13. Coin one word for the following statements: Enviromental factors whch ...

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  14. Coin one word for the following statements: Study of soil.

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  15. Coin one word for the following statements: Plants growing in sandy so...

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  16. Coin one word for the following statements: Ecological sutdy of single...

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  17. Coin one word for the following statements: Number of births per 1000 ...

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  18. An association of different interrelated populations belonging to diff...

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  19. A direct food relation between two species of anbimals in which one an...

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  20. An association of two species where one is benefited ad other remains ...

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  21. Which one of the following is protective deice?

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