Unit 7- Weathering, Erosion, and Deposition

What factor has the least effect on the weathering of a rock?

• climate conditions

• compositions of the rock

• exposure of the rock to the atmosphere

• the number of fossils found in the rock

Which property of water makes frost action a common and effective form of weathering?

• Water dissolves many earth materials

• water expands when it freezes

• water cools the surroundings when it evaporates

• water loses 334 joules of heat per gram when it freezes

The action of the root splitting the bedrock is an example of

• chemical weathering

• deposition

• erosion

• physical weathering

In which climate would the chemical weathering of limestone occurs most rapidly?

• cold and dry

• cold and humid

• warm and dry

• warm and humid

Which type of weathering was primarily responsible for the development of caves?

• physical weathering of sandstone

• physical weathering of limestone

• chemical weathering of limestone

• chemical weathering of limestone

Which statement best characterizes the soils found in New York State?

• all the soil has been removed by glaciation

• wind erosion has been the dominant agent is soil formation

• transported soils are similar in composition to underlying bedrock

• transported soils are far more common than residual soils

Why will a rock weather more rapidly if it is broken into smaller particles?

• the mineral structure of the rock has been changed

• the smaller particles are less dense

• the total mass of the rock and the particles is reduced

• there is more surface area exposed

Which change would most likely cause soil layer to increase in thickness?

• a decrease in slope

• a decrease in rainfall

• an increase in biological activity

• an increase in air pressure

Sediment is deposited in a river delta because the

• velocity of the river decreases

• force of gravity decreases

• volume of the river decreases

• gradient of the river decreases

A sediment particle transported by a stream over a long period of time will most likely show

• a decrease in mass and number of angular edges

• a decrease in density and size

• an increase in weight and hardness

• an increase in volume and number of cleavage patterns