The stars generate helium from hydrogen at core temperatures of about 10 million degrees. why does it require even higher temperatures to create elements with greater numbers of protons than helium?

Which rock type is associated with a high-energy environment (such as a very turbulent mountain stream) ?

You use a straw to blow an air bubble into a glass of milk. The bubble quickly escapes, if the milk is like magma and the air bubble is like water vapor trapped in the magma, what type of volcanic eruption would this produce?

The main difference between intrusive and extrusive igneous rocks is ___? A. Intrusive is due to magma cooling deep within Earth's interior and extrusive is due to it cooling at Earth's surface. B.

Who were three early leaders of the Protestant church movement?

How did bigger agricultural yields in early societies lead to larger cities and towns? A. They supported growing populations. B. They encouraged migration with increased labor needs. C.

Your friend tells you that our orbit is so special that it is at just the right distance from the sun for us to be at the right temperature for life to flourish. He says that if we were even ten miles closer to the sun, we would burn up.

The suns energy is classified by what

Earth is a closed system. that means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on earth ___. so it is essential that bio geochemical cycles __ these materials as they move through earths subsystems A: remains constant.

What are the percentages of the large near Earth asteroids that we have found so far?

Name the lines of latitude that are labeled north of the equator what would be the next label after 75 degrees north