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10 questions
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- Q1What is one effect of weathering on rocks in a river?Rocks become smaller and smoother over time.Rocks break apart into smaller pieces without changing texture.Rocks become larger and sharper over time.Rocks remain unchanged in size and shape.30s4-ESS2-1
- Q2How does vegetation affect the rate of erosion on a hillside?Vegetation speeds up erosion by loosening soil with roots.Vegetation increases erosion by attracting insects.Vegetation has no effect on erosion rates.Vegetation slows down erosion by holding soil in place with roots.30s4-ESS2-1
- Q3Which natural force is primarily responsible for the formation of sand dunes?Vegetation grows dunes by trapping sand with plant matter.Water flows to create sand dunes through sediment deposition.Wind is responsible for creating sand dunes by moving sand grains across a desert surface.Ice melts to form sand dunes by depositing minerals.30s4-ESS2-1
- Q4What process causes sharp rocks in a stream bed to become smooth over time?Erosion caused by vegetation growing around the rocks.Erosion caused by ice expanding and contracting in the rocks.Erosion caused by wind blowing sand against the rocks.Erosion caused by water wearing down the rocks.30s4-ESS2-1
- Q5What effect does ice have on rocks that contributes to weathering?Ice polishes the surface of rocks and makes them smoother.Ice melts into water and washes away rocks.Ice dissolves rocks turning them into soil.Ice can cause rocks to crack by expanding as it freezes within rock crevices.30s4-ESS2-1
- Q6How does rain contribute to soil erosion on a hillside?Rainwater causes rocks to melt, forming a protective layer over the soil.Rainwater can flow downhill, carrying away soil particles with it.Rainwater hardens the soil, making it less likely to erode.Rainwater builds up on a hillside, preventing erosion by soaking into the soil.30s4-ESS2-1
- Q7Which natural factor can slow down the process of erosion on a beach?Warm temperatures, to dry out the sand completely.Strong winds, to transport the sand inland.Vegetation, such as grasses, helps stabilize the sand and reduce erosion.Increasing rainfall, to wash the sand away quickly.30s4-ESS2-1
- Q8What role does water play in the process of chemical weathering of rocks?Water freezes inside rocks, causing them to break apart physically.Water cools rocks, making them more resistant to other changes.Water reacts with minerals in rocks to form new compounds, which can weaken the rock.Water acts as a lubricant, allowing rocks to slide past one another.30s4-ESS2-1
- Q9How does wind contribute to the process of erosion in desert environments?Wind enables plants to grow, which protect rocks from erosion.Wind blows away only vegetation, leaving rocks exposed.Wind carries small particles like sand, which wear away rock surfaces over time.Wind freezes water within rocks, causing them to crack.30s4-ESS2-1
- Q10Which process describes the gradual breaking down of rocks due to natural forces like rain and temperature changes?Weathering describes the breakdown of rocks through environmental factors.Deposition describes the breakdown of rocks.Subduction describes the breakdown of rocks.Crystallization describes the breakdown of rocks.30s4-ESS2-1
