I am pretty sure the awnser is B the collapse of communism
Global warming impacts terrestrial biomes since it brings about <span>decreased precipitation and longer winter seasons. Global warming refers to the increase in temperature of the Earth's atmosphere. This is brought about by release of greenhouse gases (e.g. carbon dioxide, methane) in the air which trap heat in the Earth's atmosphere. As a result, there is increased variability of weather and climate patterns. </span>
Answer:
D.
Explanation:
Most settlements in the Middle East, especially Arabia are near the sea. Historically the main industry was trade and fishing, so those towns would be very important to those industries. Most new modern settlements are in areas with oil, those towns are mainly for the workers. The Middle East doesn't have a lot of the materials naturally from the other answer choices.