Question

Ninety per cent of the world population occupies only thirty per cent of land area. The remaining seventy per cent of the land is either sparsely populated or uninhabited

Answer 1

Answer:

The question would be:

how much area does the world population cover?Also write what the remaining area has.

( you can cut the last line )

hope this helps

(or change it a little bit)

Answer 2

Answer:

The remaining 70% of the land is either sparsely populated or uninhabited. Plains and river valleys are densely populated because they are suitable for agriculture. On the other hand, steep slopes and water logged areas are sparsely populated.

I hope it will be helpful to you friend