How did the countries of the Arabian peninsula solve the problem of obtaining the scarcest resource?

a) they built industrial plants to remove the salt from seawater to use it for irrigation and drinking

b) they built sailing vessels for fishing and trading

c) they built homes from sun-dried bricks

d) they built oil wells and oil pipelines

The countries of the Arabian peninsula solve the problem of obtaining the scarcest resource by building industrial plants to remove the salt from seawater to use it for irrigation and drinking.

Answer: Option A

Explanation:

Water is the scarcest resource of the Arabian peninsula as being the desert land form. The availability of potable water is scarce and has access to saline water which cannot be drunk or used for irrigation. Therefore, industrially treated saline water removes salt from the sea water and then can be used for drinking and irrigation purpose.