p. 151, #1-8

1.
Lithosphere: Coal and oil
Atmosphere: H20 and Co2
Hydrosphere: H20 and 3.5% of NaCl

2 a .
The crust:  the surface of the earth that we live on
The mantle: molten rock that creates hot spots and is a source for volcanos
The core: the magnetic center of the earth, very hot
b. The lithosphere contains the most chemical resources used in manufacturing.

3.
a. silver: Mexico
b. copper: Japan
c. tin: China

4. China produces the most

5. Minerals are different from ores because minerals are a pure form and are not attached to other substances. An ore is a mineral that is attached to other substances, yet the mineral can still be detached from the other substances.

6. Factors that determine the feasibility of mining a particular metallic ore at a site is whether the spot has traces of the ore found or if the site has colors in the rock that are the same colors of the mineral that is being targeted.

7. Factors that may have influenced the decision to reopen the mine are that more of the gold may have formed and now be visibly minable.

8. A "useful ore" means that the mineral has at least 1% of of mineral crystals inside of it.

4.
5.
6.
7.
8.