Geothermal energy is considered a renewable energy because it:
a: is heated water
b: is used to heat buildings
c: is made of natural gas
d: is continually produced inside the earth

All of the following are extrusive landforms except           a. batholiths.   b. lava plateaus.   c. shield volcanoes.   d. geysers.  

In what three areas is the us leader?

The first atomic explosion was detonated in the desert north of alamogordo, new mexico, on july 16, 1945. what percentage of the strontium-90 ( yr) originally produced by that explosion still remains as of july 16, 2016?