What energy form is created when deep wells pump out very hot water and steam to turn turbines and create energy? A. nuclear energy B. solar energy C. geothermal energy D. coal

An ancient rock sample has 2 pg/kg of a radioactive isotope. Modern formations of this type of rock have 64 pg/kg of this same isotope. If the half-life of this isotope is 30 million years how old is the ancient rock sample

Which two countries are the most popular tourist destinations in the world? A. France and Germany B. Macedonia and Greece C. Spain and France D. Poland and Hungary

Which fossil fuel, mineral, and gem are most widespread in the tropical North?

How did Islam come to North Africa? In a short paragraph, give three examples of the ways this religion has impacted North African culture.

If the density of an object is less than the density of water, what will the object do?

Of the major religions today, which two are monotheistic?

Which statement does not describe how the ocean shapes landforms? A. currents erode beaches. B. sand and gravel in water weather rocks. C. water deposits material and forms deltas. D. waves drop sand and build a up shorelines.

What type of map would most likely be used to depict grizzly bear population density in Glacier National Park?

Which gas is inferred to have been absent from earth's atmosphere during the early Archean era

anout 140000 japanese died in this japanese coty when americans dropped an atomic bomb at the end of world war 2