Recent questions in Olympiad-Science

The false feet of Amoeba are used for

asked Sep 13, 2017 by priyanka.c

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Which of the following raw material is available in the air for photosynthesis?

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Two organisms are good friends and live together. One provides shelter, water and nutrients while the other prepares and provides food. Such an association of organisms is termed as

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An element has an atomic number of 15 with which of the following elements will it show similar chemical properties.

asked Sep 13, 2017 by meena.p

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Which of the following gases can be used for storage of fresh sampel of an oil for a long time?

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Nail polish remover contains ?

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Conditions for equilibrium of concentration of reactant and products will be same if

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The system of a network of pipes used for taking away wastewater from homes or public buildings to the treatment plant is known as

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Strands of DNA are held together by

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Pick from the following one chemical used to disinfect water

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Methyl orange is

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Forests are not responsible for

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An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be :

asked Sep 13, 2017 by meena.p

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In the reaction $2PbO + C \to 2Pb + CO_2$ (a) lead is getting reduced (b) carbon dioxide is getting oxidised (c) lead oxide is getting reduced. (d) carbon is getting reduced.

asked Sep 13, 2017 by meena.p

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Which of the products is not obtained from a forest?

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Addition of hydrogen to ethene forms

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"Every Drop Counts" is a slogan related to

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In magnetic separation, magnets are used to separate

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Which type of soil dries out quickly after a rain?

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The inert gases are ____ in water

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The amount of water recommended by the United Nations for drinking, washing, cooking and maintaining proper hygiene per person per day is a minimum of

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2 answers

The ovaries of different flowers may contain

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The 'eyes' of the potato plant is what

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In which of the following parts of human body are sweat glands absent?

asked Sep 13, 2017 by priyanka.c

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Read the following environmental conditions of tropical rain forests. (i) Hot and humid climate (ii) Unequal lengths of days and night (iii) Abundant rain fall (iv) Abundant light and moisture Identify the conditions from the above list that are responsible for the presence of large number of plants and animals in tropical rain forests.

asked Sep 13, 2017 by priyanka.c

1 answer

Which of the following statement is incorrect for penguins?

asked Sep 13, 2017 by priyanka.c

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Read the following statements with reference to the villi of small intestine. (i) They have very thin walls. (ii) They have a network of thin and small blood vessels close to the surface. (iii) They have small pores through which food can easily pass. (iv) They are finger-like projections. Identify those statements which enable the villi to absorb digested food.

asked Sep 13, 2017 by priyanka.c

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The finger-like outgrowths of Amoeba helps to ingest food. However, the finger-like outgrowths of human intestine helps to

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When we observe the lower surface of a leaf through a magnifying lens we see numerous small openings. Which of the following is the term given to such openings?

asked Sep 13, 2017 by priyanka.c

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Water polluted by various human activities causes a number of water borne diseases. Which of the following is not a water borne disease?

asked Sep 13, 2017 by priyanka.c

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Open drain system is a breeding place for which of the following?

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The branchy part of a tree above the stem is known as

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Pick the option which gives the names of a tree and an animal, respectively from the following.

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The end product of fat digestion is

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Which of the following is not the name of a tree?

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On which of the following day is World Water Day observed?

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Which of the following is a way to use water economically?

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Seeds of drumstick and maple are carried to long distances by wind because they possess

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The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in -

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Earthworms and frogs breathe through their skin because of which the skin of both the organisms is

asked Sep 13, 2017 by priyanka.c

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Read the following statements with reference to soil. (i) Weathering is a very fast process of soil formation (ii) Percolation of water is faster in sandy soils (iii) Loamy soil contains only sandy and clay (iv) Top soil contains the maximum amount of humus Choose the correct statement from the above.

asked Sep 13, 2017 by priyanka.c

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Priya went to a wildlife sanctuary where she saw dense vegetation of trees, shrubs, herbs and also a variety of animals like monkeys, birds, elephants , snakes, frogs, etc.The most likely location of this sanctuary is in the-

asked Sep 13, 2017 by priyanka.c

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The acid present in the stomach

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The term that is used for the mode of nutrition in yeast, mushroom and bred mould is

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The substance which, on treating with chlorine, yields bleaching powder is

asked Sep 13, 2017 by meena.p

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A student adds 2 mL of acetic acid to a test tube containing 2 mL of distilled water. He then shakes the test tube well and leaves it to settle for some time. After about 5 minutes he observes that in the test tube there is :

asked Sep 13, 2017 by meena.p

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The by product of soap is

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Bleaching action of chlorine is by

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The method of concentrating the ore which makes use of the difference in density between ore and impurities is called

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What is Calcium sulphate ?

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