Science test 2 BJU

Weathering is the process of

• The rock cycle

• Breaking down rocks

• Predicting rain

An example of mechanical weathering is

• bedrock

• oxidation

• exfoliation

Stalactites and stalagmites may form in caves from dissolved

• calcite

• iron oxide

• carbon dioxide

The largest particle that makes up soil is

• silt

• sand

• clay

An example of chemical weathering is

• an avalanche

• acid rain

• abrasion

The layers of soil are called

• depositions

• sediments

• horizons

The action of weathered material moving from one location to another is

• erosion

• evaporation

• exfoliation

The primary force behind the movement of weathered material is

• an explosion

• a chemical reaction

• gravity

An avalanche is most likely to occur

• on a high sand dune

• on a snowy mountain

• after a heavy rain

A delta may form at the mouth of a river as a result of

• deposition of sediment

• acid rain falling

• a sandstorm