Hamad Everyday Science Mcqs 19/08/2024 A. A sea bird B. A beetle C. A fruit D. None Related Mcqs: Laughing gas has chemical composition of following two elements ?A. Nitrogen + Hydrogen B. Nitrogen + Carbon C. Nitrogen + Oxygen D. Oxygen + Carbon E. None of these... Which of the following atmospheric layers help in radio communication?A. Exosphere B. Ionosphere C. Troposphere D. Stratosphere E. Ozone layer... A body can escape the gravitational pull of the earth if it is thrown up with a velocity of?A. 25 miles per sec b ) 60 miles per sec C. 7 miles per sec D. 10 miles per sec E. None of these... Short-sightedness can be corrected by using ___________?A. Convex lens B. Concave lens C. Convex-concave lens D. Concave-convex lens... Which metal is pure conductor of electricity?A. Copper B. Gold C. Silver D. lead...
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