Ch 4 L3 Soil Conservation Lesson Quiz Study Guide

How can farmers prevent/slow down soil erosion?

• Cover their crops with a tarp 
• Water the soil everyday in order to weigh it down 
• Plant crops, plants, etc. to hold the soil in place
• Cut down all of the trees and crops. 

Soil conservation includes all of the following EXCEPT_______.

• Desertification
• Contour plowing
• Terracing
• Crop rotation

Farmer Joe plowed curved rows that followed the shape of the land in order to create water breaks, what method did he use?

• contour plowing
• crop rotation
• subsoil preservation
• terrace farming

What most likely happens to soil when crops are not rotated from year to year?

• The soil nutrients are depleted
• The soil fertility increases
• The soil becomes more porous
• The soil erodes less rapidly

Why is soil an important natural resource?

• soil is used to make buildings
• soil can grow crops
• soil comes from bedrock
• soil is full of mircobes

Why is soil is a valuable resource?

• is important to all living things on land

• contains sand and gravel

• is rich in decomposers

• has all three soil horizons

What term describes the management of soil to prevent its destruction?

• soil exhaustion

• soil decomposition

• soil conservation

• soil fertility

why is it important to have soil conservation

• save the soil

• prevent erosion

• prevent another dust bowl

• all of the above

What do farmers call crops that they plant to cover loose soil so that it does not erode?

• extra crops
• erosion crops
• cover crops
• protective crops

When there are not enough plants to hold topsoil in place, water and  _______ carry the topsoil away, leaving the subsoil exposed

• sunlight
• birds
• magnetic fields
• wind