Question

Why are the hot deserts mainly located along the western side of the continent?

Answer 1

Hope it helps

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Some deserts are found on the western edges of continents. They are caused by cold ocean currents, which run along the coast. They cool the air and make it harder for the air to hold moisture. Most moisture falls as rain before it reaches the land, eg the Namib Desert in Africa.

Answer 2

Hot deserts are on the western side of the continents because of the following reasons:

Off shore Trade Winds : This is one of the principle reasons for the location of Hot deserts on the western margins of continents. The trade winds blow in the North Easterly direction in the northern hemisphere while they blow in the South Easterly direction in the southern hemisphere. As such they blow over land and very dry thus no possibility of causing precipitation.

Cold Oceanic Currents : The presence of cold ocean currents along the western shores of continents leads to the development of high pressure over the water surface. This high pressure leads to subsidence of air hinders cloud formation. This would be another important reason.

Presence of orographic/mountain barrier : In case of hot deserts like the Mojave desert(USA) where the Rockies and the Thar desert(India) where the Aravallis act as orographic barrier to the rain bearing winds.