Why are there glacial tracks in the Sahara?

Question

I need the answer asap it's for geography homework...

Answer 1

it is because before the tectonic plates shifted, africa was situated in the north pole/ south pole... so it acquired glacial tracks... when the continent moved to the tropical region, then they melted...

Answer 2

It's due to plate tectonics

A few hundred million years ago, what is now the Sahara Desert sat upon the south pole. The continents at that time were combined into a supercontinent called Pangaea. The part that contained Africa and the sahara desert were near the South Pole, which was cold enough to allow glaciers to form over the region. Eventually, Pangaea shifted northward, and the continent split apart into the many continents we have today.

North Africa, containing the Sahara Desert moved into Subtropical latitudes which are conducive to a hot desert climate  they have today. North Africa will eventually leave the subtropics and when that happens it will have a different climate

Answer 3

The Ice Age?

Answer 4

Since the world was created by God, things have changed. Continents have moved and climates have changed. Changes have been due to change in position of continents and variation, world wide, of climate. There have been Ice Ages and periods between ice ages (we are in one of these at the moment). The Sahara was once covered with glaciers.