Soil

What is the layer of soil called where microoganisms, insects, and some small animals live?

• subsoil

• parent material

• topsoil

• bedrock

Why is soil important for plants? Check all answers that are true.

• it helps support their roots and hold them in the ground

• it provides nutrients plants need to grow

• it causes the plants to be green

• it gives plants all the water they need to grow.

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What would happen if we did not have soil?

• we wouldn't be able to grow any crops

• there would be no living things

• only animals that eat plants would be effected

• all the ground would be covered in water

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What do all food chains begin with?

• very small animals

• plants

• humans

• soil

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What is deforestation?

• planting trees

• places where trees are planted

• place with no vegetation

• cutting down trees

What is afforestation?

• the cutting down of trees

• planting new trees

• using trees to provide shade

• a place without any trees

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How does terrace farming help to conserve soil?

• the soil is covered in grass

• more trees are planted to protect the soil

• hills are cut into small flat surface to keep soil from being washed away

• they keep the wind from blowing away the plants

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How do cover crops protect the soil?

• They keep water away from the fields

• They help keep the soil moist

• They help loosen the soil.

• They keep the soil covered so that it won't be blown away or washed away as easily as bare soil.

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What are shelter belts?

• belts tied around trees to keep them supported

• planting trees around fields to keep wind and water from washing away soil

• putting fences around fields to protect the soil

• building stone or mud walls to keep soil from washing away

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What are bunds?

• crops planting to keep soil in place

• walls made near fields close to rivers and streams to keep the water from washing soil away

• a type of tree planted to keep soil from blowing away

• a flat area cut into the side of the hill for planting crops

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