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Pele is called magician of football .....

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A centrifuge is a device which can rotate in a horizontal circle about the central .....

a.    Depletion of ozone layer The depletion of ozone layer is the formation of hole in it or gradual thinning of this layer. Depletion of ozone layer is caused due to the entry of chemicals like chlorofluorocarbon (CFCs), methyl .....

A transformer is a device which is used to increase or decrease the voltage of an alternating .....

Photocell is a device that converts light energy into electrical .....

Ecosystem can be defined as integration of biological community and their physical environment in a particular .....

The two sources of water pollution are given below: a.    Sewage water The liquid waste discharged from industries as well as domestic sources is called sewage. This sewage without any treatment is directly discharged into sources of .....

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1. Whenever she comes here, she calls me. 2. Cross the road as soon as the light is green. 3. He fails in spite of his hard work. 4. I will call you after I come to Kathmandu. 5. Meet me before you .....

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The effects of air pollution are: i.    When various gases and dust particles mix in the atmosphere, it makes the sky blurry and hence reduces the visibility.  ii.   Due to air pollution, the amount of solar radiation .....

The Olympic game held for physically disabled is called Para .....

The control measures of soil pollution are: i.    The use of harmful chemical fertilizers must be replaced by compost manure in order to maximize the crop yield. ii.   Proper disposal of domestic wastes must be .....

The harmful effects of water pollution are: i.    It caused water-borne communicable diseases. ii.    It kills aquatic animals. iii.    Irrigation of polluted water in the agricultural field cause .....

Water is called a compound because water is formed by two elements hydrogen and .....

Piti Usha is related to Olympic .....

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RNA represents ribose nucleic acid, which acts as a genetic material in some lower organisms like .....

“Environment pollution affects ecosystem”. The following points justify this statement. a.    Water pollution affects the growth of aquatic animals and plants.  b.    Polluted soil affects the habitat .....

The rate of reaction of powdered marble with dilute hydrochloric acid is fast than that of reaction between marble pieces and dilutes hydrochloric acid. This is because the same weight of powdered marble has more surface area than of marble pieces .....

The wave in which the particles of the medium move up and down perpendicular to the direction of propagation of the wave is called transverse .....

The involuntary action performed by muscles under the direction of spinal cord in response to the stimulus is called reflex .....

The following might be some major obstacles of the culture of peace: a.    Ignorance: Many people still don’t know why peace is important and how peace is important and how peace should be maintained. b.   .....

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