Recent questions tagged cbsc

By using seed drills, seeds are sowed at

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The changes that occur to desertification is

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A disease in human beings caused by virus is

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Identify the bacterial disease in plant

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From the terms given below, select the pair related to inheritance of characters

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The pair of *** chromosomes seen in human male is

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What compound is a common component of air pollution, but is essential in the upper atmosphere to protect life on earth?

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Shyam’s uncle has set up an electroplating factory near his village. He should dispose off the waste of the factory

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Adrenal glands secrete

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When a copper vessel is exposed to moist air for long, it acquires a dull green coating. The green material is a mixture of

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Reproduction by budding takes place in

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Among the list given hen is odd one out "Human being, cow, dog, hen". The reason for this is

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Choose the incorrect statement from the following. Forest fires are usually due to:

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Dead organisms are transformed into petroleum & natural gas in

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Majority of the cells cannot be seen directly with our naked eyes because

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Explosion takes place because of

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What do black buck, elephant, python and golden cat represent in a forest?

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The purest form of iron is —

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Which of the following is true about endemic species ?

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Chemical effect of electric current is also known by which term?

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Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?

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The most suitable material for the preparation of handles of cooking utensils is

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The disease caused by a protozoan and spread by an insect is

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Polycot is obtained by mixing

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On burning metals react with oxygen to produce-

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Petrol can be saved by

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At room temperature, most elements are in which phase of matter?

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If a metal can be drawn into wires relatively easily it is called:

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The gas released during the preparation of bread is

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Seeds used for sowing must be

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The disadvantage of broadcasting is

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The most conspicuous visible change that is seen in boy during puberty is

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In human, the development of fertilized egg takes place in the

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Choose the correct statement w.r.t. unicellular organisms

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Ovaries secrete

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A type of plastic that is biodegradable has been in the news lately. The ingredient that makes it biodegradable is:

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For the metamorphosis of the tadpoles which of the following elements must be available in water?

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What is the name for steel alloyed with chromium?

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The sulphuric acid turns blue litmus paper into-

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Set of reproductive terms are given below. Choose the set that has an incorrect combination.

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Which of the following will work best as a tester for electric current?

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Which of the following is natural resources?

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What is called black gold?

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Spermatogenesis is the process in which testes produce

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Term that describes the various cell components is

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The organelle that accumulates excess water and removes it from the cell is called

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Carbon monoxide in vehicle exhaust causes

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A Pond contains clean water. Which of the following activities will produce least pollution of water?

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Wild buffalo is an endangered species because

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Reforestation means

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