The coast of california on the western side of the state has a moist climate, while eastern side is a desert. it could cause the difference in: c. the west side is closer to the equator than the east.
hope this help
The pollutants released into the atmosphere cause local air pollution <span>. However, they also cause regional air pollution, as with huge plumes of smoke covering a large area, and acid rain. Beyond that, we are emitting such a high level of pollutants that they are causing serious global environmental problems: climate change and ozone depletion. The human race has become capable of affecting the atmosphere that encircles the Earth, and the very planet itself.</span>
I believe it’s C.
A political map shows countries in different colors which helps to understand the map better