How Rocks Turn Into Soil

________________ is the physical wearing away of rocks.

• chemical weathering

• mechanical weathering

• erosion

• mining

________________ involves a change in the composition of rocks that allows

them to break down into pieces.

• mechanical weathering

• chemical weathering

• erosion

• earthquake

_________ is the breaking of rocks into smaller pieces.

• weathering

• erosion

• typhoon

• earthquake

Chemical weathering is also called __________.

• disintegration

• decomposition

• erosion

• composting

The continuous change of ___________ causes rocks to break.

• wind

• water

• temperature

• plants

Physical weathering is also called ______________.

• decomposition

• disintegration

• erosion

• drought

_________ is a valuable material where most terrestrial plants grow.

• soil

• water

• air

• temperature

The common mixture combines with other element compounds in the

chemical weathering process is called ________.

• water

• air

• soil

• temperature

The __________ is formed by the mixture of carbon dioxide and water. This acid, as it dissolves some minerals present in the rocks.

• carbonic acid

• sulfuric acid

• nitric acid

• rust

_________ is a strong acid that easily melts rocks and their minerals.

• carbonic acid

• sulfuric acid

• nitric acid

• rust