Which of the following locations most-likely experiences physical water scarcity?
amazon rainforest
boston, massachusetts
florida wetlands
sahara desert

The correct answer is Sahara Desert. Most likely, Sahara Desert experience physical water scarcity. Obviously, it is a desert. A desert is dry place and water is rarely found in that area. It is hot and liquid will easily evaporate.

Answer (d) the greenhouse effect is primarily caused by car and trucks;