What is true of renewable resources? a) they may be used up if consumption continues at its current rate. b) they are only found in the earth. c) they will continue to be in near constant supply.

C) because solar, wind, hydro, geothermal, biomass, ocean are all was thaer

I believe the answer is A. They may be used up if consumption continues at its current rate.

For B, this is false because there are renewable resources not found in the earth such as trees.

A and C go hand-in-hand but C is false because with the continuously growing world population, people use resources faster than they can be renewed/grown.

just finished the test, the answer is d, greg is the least cost-effective because he charges the most for the project