All of the following are
examples of renewable energy sources except ...
1. Fossil fuels
2.Biomass
3.wind energy
4.hydropower

Zac wanted to determine the measure of r and of ? r in the triangle below. to fine the measure of r, zac sets up the problem.42^2 + 24^2 = r 2. determine whether zac set the problem up correctly.

This desert is found in the northern part of africa and covers 3.5 million square miles.

Which of the following is a characteristic differentiating tropical and temperate rainforests? a. the location b. the types of trees c. the average temperature d. all of the answers are correct