________ occurs when mineral-rich groundwater permeates porous tissue and fills the empty spaces, hardening into a fossil

Light elements like hydrogen and helium form a large percentage of the outer planets and Sun is made up primarily of hydrogen. Why are these elements nearly absent from the inner planets?

A) It is a mystery that has never been solved by science. B) The Sun captured all of the hydrogen during its formation. C) Hydrogen and helium have all been bound up by chemical reactions on the inner planets and are held in rock. D) These light elements are blown away from the inner planets by the solar wind.

Sediment transportation in the coastal zone is called _______________. (two words)

Fill in the blank(s) with correct word

What does this photograph indicate about the ages between the light-colored area on the right versus the dark-colored area on the left?

A. The dark-colored area is older because it contains some craters like those on the right. B. The area on the right is older because it contains more craters than the area on the left. C. The area on the left is older because these rocks have darkened over time. D. The area on the right is younger because light-colored rocks are usually younger than dark colored ones.

There were three main areas of settlements along the Atlantic coast in the 1700's, which of the following was not one of them

A. New England B. the Middle Atlantic area C. the Georgia Florida area D. the Virginia tidewater area