Weathering

Which characteristic would most likely remain constant when a limestone cobble is subjected to extensive abrasion?

• shape

• mass

• volume

• composition

Which weathering process is most common in a hot, dry environment?

• abrasion

• carbonation

• oxidation

• frost action

Which type of weathering is most common where the average yearly temperature is 5°C and the average yearly precipitation is 45 cm?

• moderate chemical weathering

• very slight weathering

• moderate chemical weathering with frost action

• slight frost action

The diagram shows granite bedrock with cracks. Water has seeped into the cracks and frozen. The arrows represent the directions in which the cracks have widened due to weathering. Which statement best describes the physical weathering shown by the diagram?

• Enlargement of the cracks occurs because water expands when it freezes

• This type of weathering occurs only in bedrock composed of granite.

• The cracks become wider because of chemical reactions between water and the rock

• This type of weathering is common in regions of primarily warm and humid climates.

Tags

NGSS.MS-ESS2-2

The diagram shows the stump of a tree whose root grew into a small crack in bedrock and split the rock apart. The action of the root splitting the bedrock is an example of

• chemical weathering

• physical weathering

• deposition

• erosion

Tags

NGSS.MS-ESS2-2

Which type of climate has the greatest amount of rock weathering caused by frost action?

• a wet climate in which temperatures remain below freezing

• a dry climate in which temperatures remain below freezing

• a wet climate in which temperatures alternate from below freezing to above freezing

• a dry climate in which temperatures alternate from below freezing to above freezing

Tags

NGSS.MS-ESS2-6

The block diagram represents a landscape where caverns and sinkholes have gradually developed over a long period of time. Why did these caverns and sinkholes form?

• The bedrock chemically reacted with acidic groundwater.

• This type of bedrock contained large amounts of oxygen and silicon

• Glacial deposits altered the shape of the bedrock.

• Crustal uplift formed gaps in the bedrock.

Tags

NGSS.MS-ESS2-2

Which rock weathers most rapidly when exposed to acid rain?

• quartzite

• granite

• limestone

• basalt

Which event is an example of chemical weathering?

• rocks falling off the face of a steep cliff

• feldspar in granite being crushed into clay-sized particles

• water freezing in cracks in a roadside outcrop

• acid rain reacting with limestone bedrock

Which substance is represented by X on both sides of the flowchart?

• potassium feldspar

• air

• water

• hydrochloric acid

Tags

NGSS.MS-PS1-2