Nonrenewable resources are natural resources that cannot be easily replaced after they are used up, such as oil and natural gas.

Oil is an example of a nonrenewable resource.

Silicon is a natural resource found in beach sand and is used in computer chips and solar cells.

The main disadvantage is that they cannot be easily replaced after they are used up.

Luster is the way light interacts with the surface of a mineral, indicating its shine or reflectiveness.

The three main types of rocks are igneous, sedimentary, and metamorphic.

Sedimentary rock is formed from the accumulation of sediment, which can include fine particles pressed together in layers.