Question

why man's occupation of plains is the oldest and most intense

Answer 1

Because the plains agriclture or ocuupation is chaepest occupations than compare to another occupation

Answer 2

plains are the relief features as they are so fertile and densely populated physiographic division. with a rich soil cover combined with adequate water supply and favourable climate it is agriculturally a very productive part of India. the northern plains are the granaries of the country. they provide a base for early civilisations. it's also composed of alluvial soil . that's the reason man's occupation of plains is the oldest and most intense .
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