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Q. Green house effect is the heating up of the Earth's atmosphere which is due to
Green house effect is the heating up of the Earth's atmosphere which is due to infrared rays.
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Q. The humidity of the air depends upon
Q. Who firstly predicated the existence of electromagnetic waves
Q. What is the function of a dynamo?
Q. Which of the following would be most suitable for making an electromagnet?
Q. One watt-hour is equivalent to
Q. Aviation fuel for jet aeroplane consists of purified
Q. DC current can be controlled by which one of the following components?
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