Recent questions tagged olympiad

Food is stored in plants as

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Chemical fertilizers, insecticides, pesticides are

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Living things and the environment together constitute the

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Young ones of their own kind are produced by

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In unicellular organisms, transpiration of materials takes place through

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When we exhale, the ribs

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Energy is released in the body by

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Soil contains

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If the relative humidity on a particular day is 98 per cent and the temperature falls suddenly, there are chances that the day would be

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Coolest time of the day is

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Which of the following teeth have similar functions?

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The salivary glands convert

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In which organ does digestion does not take place?

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Which of the following is an insectivorous plant?

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The green pigment found in the leaves of the plant is

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Organisms need food to

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Which of the following compounds when dissolved in water gives coloured solution ?

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The number of electrons presents in $H^+$ is

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The major constituent of air is

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In sugar solution,

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As compared to beryllium, magnesium is

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The gas used for artificial ripening of green fruit is

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Shyam buys 5 square paving slabs each of side 1 cm. Find the perimeter of the arrangement shown with 5 slabs.

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The material which can be deformed permanently by heat and pressure is called a

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The isotope deuterium of hydrogen has

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Elements with more than 1 energy level will lose, gain or share electrons until they have _____________ valence electrons.

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Batman and Robin were studying physical and chemical properties of matter. They determined that the mass of a sample was 50 grams. Which sentence best states how mass describes matter?

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Which of the following letter patterns follows the same rule as the shape pattern shown below?

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In solutions particles are

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Which difference between water and ice results in ice floating on cold water?

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Elements in the same period have the same number of .

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Given

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Pot A has 15 glasses of water. Pot B holds thrice as much water as pot A. How many glasses of water are needed to fill Pot B.

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How many vertices does the following shape have

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Look at the timeline below and answer the question accordingly

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The components of water can be separated by

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$CO_2$ can be easily liquefied and even solidified because

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In the preparation of temporary mount of onion peel which of the following is not used :

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The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is

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The main use of salt in the diet is to

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Atoms which have same number of protons but different number of neutrons are called

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Which one of the followings sets of quantum numbers represents the highest energy level in an atom?

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A student was asked to mix the white of an egg with water and stir well. The student observed that

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What are the number of moles of $CO_2$ which contains 16 g of oxygen?

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$CO_2$ can be easily liquified and even solidified because

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The isotope used to remove the brain tumours and treatment of cancer is

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If we burn graphite,

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Electrochemical cells convert

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The heat required to raise the temperature of body by 1 K is called

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