Earth Science Index Cards 3.2

Question 1

Alloys

Answer 1

etallic substance composed of two or more elements, as either a compound or a solution.

Question 2

Rare Earth Elements

Answer 2

A set of seventeen metallic elements.

Question 3

Mining

Answer 3

Process of extracting useful minerals from the surface of the Earth, including the seas.

Question 4

Ore

Answer 4

The naturally occurring material from which a mineral or minerals of economic value can be extracted.

Question 5

Recycling

Answer 5

Any recovery operation by which waste materials are reprocessed into products, materials or substances whether for the original or other purposes

Question 6

Reclamation

Answer 6

The combined process by which adverse environmental effects of surface mining are minimized and mined lands are returned to a beneficial end use.

Question 7

Ms. Whiteaker😎😁

Answer 7

You are the best, you work hard everyday to keep us entertained, in line, and help us learn. So please keep doing what you do best!