Recent questions tagged olympiad

Endocrine glands release their secretions

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In sexual reproduction, number of parents needed are

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The unit of measurement used fr expressing dimension of a cell is

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The thyroid gland secretes the hormone

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Which of the following gland secretes bile?

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In males, the hormone that develops male sexual characters are

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Aquatic animals in which fertilization occurs in water are said to be

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In human beings, after fertilization the structure that gets embedded in the uterine wall is

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Choose the correct statement

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Jelly like substance present in cells is called

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The red data book keeps a record of all<br> i. Endemic species <br> ii. Extinct species <br> iii. Endangered species <br> iv. Endangered animals

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Identify the correct statement w.r.t wild life sanctuary.

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Low temperature prevents spoilage of food because it

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Malaria is caused by a

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The one that is used as a biofuel is

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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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