Q. How old is Earth, It is decided by which of the following processes?
The Earth is 4,54 billion years old. This age has been determined with the radioactive dating technique. The precise decay rate of radioactive elements is used as a clock: the number of daughter products in one rock indicates its age.
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Q. Considering the equator position, the areas having equatorial climate are:
Q. The current produced by upwelling of cold water off the coast of Chile and Peru is known as
Q. The radiant energy received by the earth and its atmosphere from the sun is called:
Q. Why are the stars more visible from the east than the west?
Q. Black soils are ideal for cultivation of cotton as
Q. Two seas or water-bodies connected by a narrow stretch of water is known as a
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Q. Lakshadweep Islands are situated in
Q. Among the following states which one has the largest forest area ?
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