Weathering, Erosion and Soil Formation

A cliff formed near the ocean.  Which statement best describes how this cliff formed?

• Warm air melted the rock.
• Sun rays evaporated the rock.
• Ocean waves washed away rock.
• Plant roots pushed away the rock.

Tags

NGSS.MS-ESS2-2

Which of these factors would NOT affect the rate of weathering?

• climate

• surface area of exposed rock

• chemical composition of the exposed rock

• harmful radiation from the sun

What is the term for the process that occurs when physical forces break rock into smaller pieces without changing the rock's chemical composition?

• mechanical weathering

• chemical weathering

• erosion

• differential weathering

Which process involves the constant freezing and thawing of water?

• unloading

• spheroidal weathering

• exfoliation

• frost wedging

Tags

NGSS.MS-ESS2-4

Which of the following could cause biological weathering?

• the flow of water over rocks

• sand blowing across the desert

• chemicals in rain

• trees growing in cracks in rocks

Tags

NGSS.MS-LS2-3

What type of weathering can be caused by acids in rain?

• biological

• chemical

• mechanical

• ecological

How does time affect soil formation?

• More time equals more soil formation

• More time causes more biological activity

• More time increases the speed of erosion

• More time causes chemical weathering

What two factors have the biggest influence on soil formation?

• slope and angle

• plants and animals

• temperature and rain

• rocks and ice

Which of the following is NOT a major component of soil?

• organic matter

• water

• minerals

• mild acids

What is a rock characteristic than can increase the rate of weathering?

• cracks in the rock

• shape of the rock

• elevation

• radiation

Tags

NGSS.MS-ESS2-2