The answer is the age of the sea floor similar plants and animals on different continents,
What u said i don’t understand
The area NORTH of the Atlas Mountains is in its rain shadow...
North Africa has three main geographic features: the Sahara desert in the south, the Atlas Mountains in the west, and the Nile River and delta in the east. The Atlas Mountains extend across much of northern Algeria, Morocco and Tunisia.
Decline of ocean liners and the growth of cruise ships