Science Chp 9 #5: Soil Erosion Overview

Which of the following best describes how to practice crop rotation?

• 1. Growing different crops on the same plot of land in sequential seasons

• 2. Growing crops on a plot of land one year and then not planting the land the next year

• 2. Growing crops in strips that follow the slope or contour of the land

• Planting the same crop in the same area every season

Which of the following situations is MOST likely to lead to soil erosion?

• 1. Adding vegetation to an area

• 1. A lack of sun for three weeks in a row

• A winter snow storm

• 1. Excessive tilling of a farmer's field

A farmer wants to control soil erosion in an area of sloped land that regularly produces poor crop yield. What technique should he employ to cut in flat surfaces and control erosion?

• Drip irrigation
• Crop rotation
• Terracing
• Mulching

What can occur at the site of an area that is experiencing soil erosion?

• 1. Vegetation is able to grow easily.

• 1. Water pollution is cleared up.

• 1. Crops are planted at an off-site location.

• 1. The soil quality is reduced.

Which of the following is NOT an effect of soil erosion?

• 1. Reduced soil quality

• 1. Decreased crop yield

• 1. Improved water quality

• 1. Water pollution