Answer:
B - sub-Sahara Africa
Explanation:
this region is already very dry - there has been over grazing of animals - deforestation that speeds up desertfication
The answer is "5 minutes and 35 seconds".
Earthquakes create three kinds of seismic waves which are:P-waves that are primary waves, S-waves that are secondary wavesand surface waves,which land at seismic account stations in a steady progression.Both P and S waves enter the inside of the Earth while surface waves don't. Because of this, P and S waves are known as "body waves"