Well i always thought it was East Africa but maybe its actually Central africa..... Im positive that it is your answer.
Answer:
Soil degradation is the physical, chemical and biological decline in soil quality. It can be the loss of organic matter, decline in soil fertility, and structural condition, erosion, adverse changes in salinity, acidity or alkalinity, and the effects of toxic chemicals, pollutants or excessive flooding
I would have to say its a very hot place to be. but being surrounded by desserts benefited in Egypt in fact that no one could attack or conquer them there. No group could ever cross the Sahara to get to Egypt for they would die half way in. over 40,000 sq kms (15000 sq miles) flowed through Egypt.
I would say A. Along warm water currents from warmer regions to colder regions is the correct answer let me know if this helps
