Weathering Review 1

The growth of plant roots and animal activity may result in

• physical weathering

• erosion

• chemical weathering

• abrasion

Frost wedging causes physical weathering of rock by means of

• heating and cooling

• plant growth

• animal actions

• freezing and thawing of water

What kind of weathering causes burning, eating or dissolving away of rocks?

• Physical weathering

• permeable weathering

• chemical weathering

• general weathering

The agent of physical weathering in which rock is worn away by the action of other rock particles, like sand paper, is called

The most important factors in determining the rate of weathering are

• carbon dioxide and acid rain

• abrasion and acids from plant roots

• animal actions and oxygen

• rock type and climate

Mass movement is caused by

• plucking and abrasion

• gravity

• chemical weathering

• erosion and deposition

A permeable rock weathers easily because it

• is made up of small particles

• contains many small, connected air spaces

• is made up of only one mineral

• is made up of many minerals

Which type of weathering causes the mineral composition of rocks to change?

• chemical weathering

• general weathering

• mechanical weathering

• permeable weathering

Mechanical weathering in which rock is worn away by the grinding action of other rock particles carried by the air is called

Frost wedging causes physical weathering of rock by means of

• heating and cooling

• plant growth

• animal actions

• freezing and thawing of water