Weathering and Soil

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is called ________

• erosion

• cracking and peeling

• abrasion

• ice wedging

Ice wedging causes mechanical weathering of rock. Which of the following contributes to ice wedging?

• acid rain

• plant growth

• animal actions

• freezing and thawing of water

Tags

NGSS.MS-ESS2-4

Which of the following types of weathering causes the mineral composition of rocks to change?

• mechanical weathering

• permeable weathering

• chemical weathering

• general weathering

A rock containing iron becomes soft and crumbly and reddish-brown in color due to chemical weathering by ________?

• abrasion

• carbon dioxide

• oxygen

• acid rain

Tags

NGSS.MS-ESS2-2

NGSS.MS-PS1-2

Weathering takes place ______ in a hot and wet climate.

• slowly

• rapidly

• unevenly

• at the same rate as when the climate is dry and cool

Two important factors that determine the rate of weathering are ________________________.

• carbon dioxide and acid rain

• abrasion and acids from plant root

• animal actions and oxygen

• rock type and climate

Animal activity and the growth of plant roots may result in ___________________.

• mechanical weathering

• erosion

• chemical weathering

• abrasion

Granite lasts a long time when it is used for building in areas where the climate _________________.

• does not have freezing and thawing

• is cool

• has lots of acid rain

• is hot and rainy

After chemical weathering, the chemical makeup of the weathered rock is the different as that of the original rock.

• true

• false

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The rate of chemical weathering is slower in hot, wet climates than in cold, dry climates.

• true

• false