World Geography
The ocean water is saline due to

volume of fresh water added by rainfall
both (a) and (b)
salts are already present in sea water
evaporation of its surface

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World Geography
Which among the following region has the highest density of rail network?

Eastern Asia
South east Asia
North America
Western Europe

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World Geography
The periodic rise and fall of the sea level on the earth, gives rise to tides. This is related to

the position of the moon with reference to the earth and the gravitational pull exerted mainly by the moon and partly by the sun
None of these
ultraviolet rays from the sun
infrared rays from the sun

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