It is very dark down there, it is so deep that it makes it hard for scientists to be able to survive down there, & there is not really any ready to use equipment since we don't know how it is down there.
Explanation:
precipitation results to chemical weathering. Some rocks can be dissolved by the weakest of acids, with acid precipitation provides.
Answer:
a) the seasonal movement of animals between wet- and dry-season pastures the political uprisings that took place in many African nations after they were released from colonial rule the zone of ecological transition between the Sahara to the north and the wetter savannas and forests to the south
