Are rocks considered valuable natural resources?
A. No, rocks are not valuable because they are nonliving solids.
B. No, rocks are not valuable because they contain a lot of waste.
C. Yes, rocks are valuable because they are part of Earth's crust.
D. Yes, rocks are valuable because they are useful to people.
D. Yes, rocks are valuable because they are useful to people.
Aluminum is produced from bauxite ore and can be used for many things. Which option describes a common production use of aluminum?
A. electrical wiring and pipes
B. lightweight containers and drugs
C. steel objects
D. fuel for nuclear power plants
A. electrical wiring and pipes
What are common uses of the mineral quartz?
A. glass manufacturing and paints
B. iron and steel production
C. automobile manufacturing and packaging
D. building and paving materials