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…………………… is abundant in nature but avail...

…………………… is abundant in nature but availability of its special grade is limited.

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Read the following statements :- (1) Genetic Variability is the root of all breeding programs. (2) Induced mutations are useful when desired alleles are absent in germplasm. (3) Conventional breeding is not constrained by availability of limited number of genes. (4) Other breeding methods that are used selection amongst somaclonal variants and genetic engineering. How many of the above statements are correct ?

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By whom the number of organisms are limited at trophic level of food chain? a.Less availability of energy at higher tropic level b.Sufficient food supply c.Polluted air d.Water

A factory makes tennis rackets and cricket bats. A tennis racket takes 1.5 hours of machine time and 3 hours of craftman's time in its making while a cricket bat takes 3 hour of machine time and 1 hour of craftman's time.In a day, the factory has the availability of not more than 42 hours of machine time and 24 hours of craftman's time. (i) What number of rackets and bats must be made if the factory is to work at full capacity? (ii) If the profit on a racket and on a bat is Rs. 20 and Rs. 10 respectivelh, find the maximum profit of the factory when it works at full capacity.

A factory makes tennis rackets and cricket bats. A tennis racket takes 1.5 hours of machine time and 3 hours of craftman's time in its making while a cricket bat takes 3 hour of machine time and 1 hour or craftman's time. In a day, the factory has the availability of not more than 42 hours of machine time and 24 hours of craftsman's time. (i) What number of rackets and bats must be made if the factory is to work at full capacity? (ii) If the profit on a racket and on a bat is Rs. 20 and Rs. 10 respectively, find the maximum profit of the factory when it works at full capacity.

We should not bother about our natural s resources because there is plenty of natural availability.

KUMAR PRAKASHAN-SOURCES OF ENERGY-OBJECTIVE QUESTIONS AND ANSWERS
  1. …………………… is the best process to capture solar energy and convert it in...

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  2. Use of …………………… mirror would be best for in solar cooker.

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  3. …………………… is abundant in nature but availability of its special grade i...

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  4. The hydrogen bomb is based on …………………… reaction.

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  5. India is ranked …………………… in harnessing wind energy for the production ...

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  6. The total …………………… of the universe remains constant because it can nei...

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  7. The potential energy of flowing water gets transformed into kinetic en...

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  8. In solar cookers, a plain mirror is used to converge the sunlight.

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  9. Fossil fuels are the major fuels used for generating electricity.

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  10. Submerged vegetation rots under anaerobic condition producing large am...

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  11. Biogas is derived totally from animal biomass.

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  12. The level of water in the sea rises and falls due to the gravitational...

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  13. Nuclear energy is the best alternative of fossil fuel because of its e...

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  14. The nuclear bomb is embedded in a deuterium and lithium containing sub...

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  15. The assembly of the solar cell may be pollution free but the actual op...

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  16. The energy sources that can be regenerated are called renewable energy...

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  17. Nuclear fusion reactions are the source of energy in the sun and other...

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  18. Graph/diagram based question : Which of the following graph is correct...

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  19. Match the following :

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  20. Match the following :

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