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Desired improved variety of economically...

Desired improved variety of economically useful crops are raised by

A

Natural selection

B

Hybridization

C

Mutaion

D

Biofertilizers.

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SARAS PUBLICATION-ASSESSMENT TEST 4-EXERCISE
  1. The unit for measuring ozone thickness

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  2. is the most damaging type of UV radiation.

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  3. Identify the conventional method of plant breeding.

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  4. Desired improved variety of economically useful crops are raised by

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  5. Tamarindus indica is indigenous to

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  6. Identify the less pungent variety.

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  7. Which of the following ecosystem has the highest primary productivity?

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  8. Mention two morphological adaptations of hydrophytes.

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  9. What is Albedo effect and write their effects?

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  10. Write the causes of Albedo effects.

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  11. Explain the law which states that energy transformation cannot be 100%...

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  12. What are blue carbon ecosystem?

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  13. Suggest a solution to water crisis and explain its advantages.

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  14. What is meant by biological indicators ? Give example .

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  15. List the plants that are used as biological indicators. Mention what t...

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  16. Explain the best suited type of breeding followed by plant breeders at...

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  17. Name a fern that fixes the atmospheric nitrogen and descibe it.

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  18. What will happen if all producers are removed from ecosystem?

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  19. How will you prepare an organic pesticide for your home garden with th...

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  20. What are psychoactive drugs? Add a note Marijuana and Opium.

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