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Q. Which one of the following is a working principle of Refrigerator ?
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Q. Which of the following diseases are caused due to a virus?
Q. Galvanised iron is made by coating iron with
Q. Which of the following is a great source of Vitamin A ?
Q. Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?
Q. Itai-itai disease is due to poisoning caused by
Q. Who among the following enunciated the laws of planetary motion
Q. Which two basic forces are able to provide on attractive force between the two neutrons?
Q. Spirit in contact with body gives cool sensation as it is:
Q. Foot and mouth disease in animals, a current epidemic in some parts of the world, is caused by
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