Protecting Our Land from Erosion

How can wind erosion be prevented?

• Plant trees

• Build a dam

• Use solar panels

• Install street lights

Answer explanation

Planting trees helps stabilize the soil and reduce wind erosion, preventing the land from changing shape. Other options like building a dam or using solar panels do not directly address wind impact on land.

Tags

CA.2-ESS2-1

How can you reduce water erosion on a hillside?

• Paving with concrete

• Planting grass or shrubs

• Removing vegetation

• Building a playground

Answer explanation

Planting grass or shrubs helps anchor the soil with their roots, reducing the speed of water runoff and minimizing erosion. This is a natural and effective way to protect hillsides from erosion.

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CA.2-ESS2-1

What can prevent wind erosion in a desert?

• Build skyscrapers

• Create windbreaks

• Install traffic lights

• Construct swimming pools

Answer explanation

Creating windbreaks with fences helps reduce wind speed and protect the soil from erosion, making it an effective method to prevent wind erosion in desert areas.

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CA.2-ESS2-1

How can you prevent soil erosion in a garden?

• Using mulch

• Painting the soil

• Adding more water

• Removing all plants

Answer explanation

Using mulch is an effective way to prevent soil erosion in a garden. It acts as a protective layer, reducing water runoff and helping retain moisture, which keeps the soil in place.

Tags

CA.2-ESS2-1

What reduces wind impact on beaches?

• Building sandcastles

• Planting dune grasses

• Removing all sand

• Installing beach umbrellas

Answer explanation

Planting dune grasses helps stabilize sandy beaches by anchoring the sand with their roots, reducing erosion and the impact of wind. Other options do not effectively address wind impact.

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CA.2-ESS2-1

How can farmers prevent wind erosion?

• Leave fields bare

• Plant cover crops

• Use more fertilizers

• Increase irrigation

Answer explanation

Farmers can prevent soil erosion caused by wind by planting cover crops. These crops protect the soil, reduce wind speed at the surface, and help maintain soil structure, unlike leaving fields bare which can worsen erosion.

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CA.2-ESS2-1

How can water erosion of riverbanks be prevented?

• Build a bridge

• Plant trees along the banks

• Remove all rocks

• Construct a parking lot

Answer explanation

Planting trees along riverbanks helps stabilize the soil with their roots, reducing erosion caused by water flow. This natural method is effective in protecting the banks compared to the other options listed.

Tags

CA.2-ESS2-1

How can soil be protected from wind erosion?

• Installing solar panels

• Creating windbreaks with trees

• Building a fence

• Paving the field

Answer explanation

Creating windbreaks with trees is effective in protecting soil from wind erosion as they reduce wind speed and shield the soil, preventing it from being blown away. Other options do not provide the same level of protection.

Tags

CA.2-ESS2-1

How can you prevent soil erosion?

• Install a swimming pool

• Plant a rain garden

• Remove all plants

• Build a shed

Answer explanation

Planting a rain garden helps absorb excess water and reduces runoff, preventing soil erosion. In contrast, installing a pool, removing plants, or building a shed do not effectively address erosion issues.

Tags

CA.2-ESS2-1

How can coastal areas be protected from wind erosion?

• Build roads

• Plant mangroves

• Remove vegetation

• Construct hotels

Answer explanation

Planting mangroves helps stabilize coastal areas by reducing wind speed and trapping sediment, thus protecting against wind erosion. Other options like building roads or hotels do not provide this protective benefit.

Tags

CA.2-ESS2-1