Which two of the following choices are examples of commons?
A. Private homes in a neighborhood
B. National parks
C. Personal computers
D. Units in an apartment complex
E. Groundwater

Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earth’s surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.

Which of the following is an advantage of solar energy?

Arepair man charged $93.06 the price included 2 hours of labor and 40 service charge how much does the repairmen charge per hour for labor?