11. What mineral is the main component of sand?
A) Quartz
B) Feldspar
C) Calcite
D) Olivine
12. What mineral is used to make batteries?
A) Quartz
B) Feldspar
C) Lithium
D) Olivine
13. Which mineral is used as a source of lithium for batteries?
a) Quartz
b) Lithium carbonate
c) Halite
d) Calcite
14. Which mineral is used in the production of glass?
a) Quartz
b) Halite
c) Gypsum
d) Feldspar
15. Which mineral is commonly used in the production of fertilizers?
a) Apatite
b) Gypsum
c) Pyrite
d) Barite