Ware
8. As light goes from one substance into another, it can either bounce off of or bend into the new
substance. Bending into the new substance is called ?
- and bouncing off of it
is called ?

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

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Which best represents the law of conservation of mass ?