Which of the following layers make radio transmission possible?
Correct answer B. Ionosphere
Tip: press A, B, C or D to answer, and N for the next question.
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See allThe position of earth in its orbit, when it is at its greatest distance from the sun causing northern summer is called?
Correct answer A. Aphelion
Which of the following is most elastic?
Correct answer A. Steel
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The science which deals with study of manners and customs of people is?
Correct answer A. Ethnology
Clocks moving with velocities comparable to the speed of light run?
Correct answer B. Slow
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