Exogenic Processes: Weathering and Erosion

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32 Questions

What is the primary source of energy that drives weathering?

Sun

What is the process that breaks down rock into sediments on-site called?

Weathering

What is the term for the process where natural cracks are formed in a rock, breaking it into rectangular blocks or irregular chunks?

Exfoliation

Which process involves water inside the rock experiencing regular freezing and thawing?

Frost wedging

What is the process where plants growing on the rock's surface pry it open called?

Root wedging

When salt crystallizes and weakens the rock, causing it to disintegrate when exposed to wind or rain, what type of weathering is this?

Salt wedging

What is the process of separation and removal of weathered and unweathered rocks and soil from its substrate?

Transport

Which process involves reaction of oxygen with minerals in the rock, forming oxides?

Oxidation

What causes the surface to break-off into sheets when it cools?

Dissolution

What involves the downslope movement of rock, soil, and ice due to gravity?

Mass Wasting

Which type of erosion commonly occurs in flat, bare areas or dry, sandy and loose soils?

Wind Erosion

What is the forward rotation out of the slope of a soil or rock mass called?

Topple

What involves processes by which sediments are moved along from the source to where they are deposited?

Transport

What causes water to be absorbed into the crystal structure of the mineral, causing it to expand?

Hydration

When fungi and lichens secrete organic acids, what type of weathering is occurring?

Biological Weathering

What occurs when materials are saturated and move downslope as a viscous fluid?

Flow

What type of weathering occurs when a rock is exposed to high temperature, causing its outer layer to expand?

Thermal expansion

Which type of weathering involves the reaction of oxygen with minerals in the rock, forming oxides?

Chemical weathering

What process occurs when salt crystallizes, pushing apart the surrounding grains and weakening the rock, causing it to disintegrate when exposed to wind or rain?

Salt wedging

Which process involves plants growing on the rock's surface prying it open?

Root wedging

What type of weathering occurs when water inside the rock experiences regular freezing and thawing, causing the pieces of rock to detach?

Frost wedging

Which weathering process involves an on-site breakdown of rock into sediments?

Chemical weathering

What process involves the downslope movement of rock, soil, and ice due to gravity?

Mass wasting

Which type of weathering occurs when salt crystallizes, pushing apart the surrounding grains and weakening the rock, causing it to disintegrate when exposed to wind or rain?

Hydration

What type of erosion commonly occurs in flat, bare areas or dry, sandy and loose soils?

Wind erosion

What causes the surface to break-off into sheets when it cools?

Exogenic processes

Which type of weathering involves an on-site breakdown of rock into sediments?

Hydrolysis

What process occurs when salt crystallizes and weakens the rock, causing it to disintegrate when exposed to wind or rain?

Hydration

Which process involves plants growing on the rock's surface prying it open?

Biological weathering

What is the forward rotation out of the slope of a soil or rock mass called?

A topple

Which type of erosion involves rivers starting as small individual streams called tributaries?

Erosion by water

What involves processes by which sediments are moved along from the source to where they are deposited?

Transport

This quiz covers exogenic processes such as weathering and erosion, which are important geological phenomena that shape the Earth's surface. The quiz explores the breakdown of rocks, transformation into sediments, and the influence of the Sun's energy on weather patterns.

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