World Geography
The process of weathering results into

the complete loss of particular atoms or the compounds from the weathered surface
the addition of specific atoms or compounds to the weathered surface
All of these
a breakdown of one mass in to two or more masses, with no chemical change in the mineral or rock

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

Western Europe
North America
South east Asia
Eastern Asia

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World Geography
The relative abundance of dissolved salts in seawater in descending order is as follows

sodium, chlorine, magnesium, potassium, sulphate, calcium
chlorine, sodium, sulphate, magnesium, calcium, potassium
chlorine, magnesium, calcium, sodium, potassium, sulphate
chlorine, sodium, magnesium, calcium, potassium, sulphate

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