HISTORY
THE MUSLIM WORLD AND AFRICA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It became colder.
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It became hotter.
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It became wetter.
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It became drier.
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Detailed explanation-1: -Subsequent cooling and drying of the climate led to a cold, arid maximum about 70, 000 years ago, followed by a slight moderation of climate and then a second aridity maximum around 22, 000-13, 000 14C years ago.
Detailed explanation-2: -As recently as 5, 000 years ago, one of the world’s driest and most uninhabitable places, the Western Sahara desert, was home to a vast river system that would rank as the world’s 12th largest drainage basin if it existed today.
Detailed explanation-3: -In West Africa, climate change impacts are already affecting agriculture and coastal economic activities. The World Bank has identified rising sea levels and coastal erosion across the region as major risks that will increase the exposure and vulnerability of local populations and assets.
Detailed explanation-4: -As recently as 5, 000 years ago, the Sahara-today a vast desert in northern Africa, spanning more than 3.5 million square miles-was a verdant landscape, with sprawling vegetation and numerous lakes.