Coastal deserts are generally found on the west side of the continents for example Namib Atacama coa...........

Geography and Environment(BPSC) World climates

Coastal deserts are generally found on the west side of the continents for example Namib, Atacama, coastal desert of Morocco or the desert of Baja California. In this context consider the following:

1) Gravitation of sun and moon

2) Global circulation of ocean currents

3) Sea floor spreading

4) Earth’s rotation

Which among the above would be sufficient to explain the above mentioned phenomena?

1 and 2

2, 3 and 4

1, 2 and 4

1 and 3

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Explanation:

Sea floor spreading is not the appropriate method for the desert formation on the west side of the continents.

Most of the worlds deserts are located in the western margins of continents in the subtropics because the prevailing winds in the tropics are tropical easterly winds. The tropical easterly winds become dry by the time they reach the western margins of the continents and so they bring no rainfall.