EROSION, SEDIMENTATION AND
WEATHERING EXAM QUESTIONS AND
100% VERIFIED ANSWERS!!
what is weathering?
the breaking down of material into smaller pieces
what is erosion?
the removal of material and transportation away from its location over time
what are the three weathering processes?
chemical, mechanical, biological
what makes chemical weathering occur?
when the chemical composition of rocks changes through exposure to water, oxygen, or an acid
how does water cause chemical weathering?
water moves across rocks dissolving ions and transporting them to the ocean as runoff
what is another name for physical weathering?
mechanical weathering
what causes physical weathering?
when rocks are broken into smaller pieces without changing their chemical composition
what are the main causes for physical weathering?
temperature changes, ocean waves
how does temperature cause physical weathering?
constant heating and cooling or sudden temperature changes can break apart rocks
water getting into the cracks of rocks and freezing causes the rock to expand
, how do waves cause physical weathering?
constant motion of the waves causes great changes in the coastline
what is another name for organic weathering?
biological weathering
what does organic weathering rely on?
living organisms
what are the four types of erosion?
ice, gravity, wind, water
what mostly causes ice erosion?
glaciers
how do glaciers cause erosion?
glaciers move over land breaking rocks and weathering them by picking up the particles and
carrying them to a new location
how does gravity cause erosion?
gravitational forces pull cracking cliff edges causing the rock to fall
how does wind erosion occur?
wind blows carrying sediment to a new location
how does water cause erosion?
water picks up sediments and carries them through runoff or rivers to the ocean
what has the greatest impact on rates of sedimentation?
particle size and water speed
how does water speed affect the particle size it carries?
the faster the water is moving the larger the size of the particles it can carry
WEATHERING EXAM QUESTIONS AND
100% VERIFIED ANSWERS!!
what is weathering?
the breaking down of material into smaller pieces
what is erosion?
the removal of material and transportation away from its location over time
what are the three weathering processes?
chemical, mechanical, biological
what makes chemical weathering occur?
when the chemical composition of rocks changes through exposure to water, oxygen, or an acid
how does water cause chemical weathering?
water moves across rocks dissolving ions and transporting them to the ocean as runoff
what is another name for physical weathering?
mechanical weathering
what causes physical weathering?
when rocks are broken into smaller pieces without changing their chemical composition
what are the main causes for physical weathering?
temperature changes, ocean waves
how does temperature cause physical weathering?
constant heating and cooling or sudden temperature changes can break apart rocks
water getting into the cracks of rocks and freezing causes the rock to expand
, how do waves cause physical weathering?
constant motion of the waves causes great changes in the coastline
what is another name for organic weathering?
biological weathering
what does organic weathering rely on?
living organisms
what are the four types of erosion?
ice, gravity, wind, water
what mostly causes ice erosion?
glaciers
how do glaciers cause erosion?
glaciers move over land breaking rocks and weathering them by picking up the particles and
carrying them to a new location
how does gravity cause erosion?
gravitational forces pull cracking cliff edges causing the rock to fall
how does wind erosion occur?
wind blows carrying sediment to a new location
how does water cause erosion?
water picks up sediments and carries them through runoff or rivers to the ocean
what has the greatest impact on rates of sedimentation?
particle size and water speed
how does water speed affect the particle size it carries?
the faster the water is moving the larger the size of the particles it can carry
