Fluorine and Chlorine are very reactive elements. Which prediction best explains this phenomena? A. Both elements are stable atoms. B. Both elements form a +1 ions. C. Both elements are metalloids. D. Both elements only need one more valence electron to fill their outer shell.

Several mountains together form a mountain . a few of these combined form a mountain system. several systems combined form a mountain , which can stretch thousands of miles in length.

In physics the desire of an object to keep doing what it is doing is termed?

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by