Answer:
c
Explanation:
smog is smog because of the air pollution
Es completamente verdadero, está en el mapa
1. D required industries to reduce or eliminate point source pollution.
This Should Help a Little:
A largely semi-arid belt of barren, sandy and rock-strewn land, the Sahel marks the physical and cultural transition between the continent's more fertile tropical regions to the south and its desert in the north. ... The Sahel also suffers from ethno-religious tensions, political instability, poverty and natural disasters.
