Erosion of Soil

What is the MOST important factor for determining soil type?

• Rock type
• Slope
• Climate

Where would you be most likely to find the MOST soil erosion in the image?

• Site A
• Site B
• Site D

Which of the following are NOT causes of soil erosion?

• Water runoff
• Wind
• Solar bleaching

What is the human activity that causes the most significant erosion of the soil?

• Farming
• Logging and Mining
• Construction

Which erosive factor was most responsible for the loss of soil during the Dust Bowl in the 1930s?

• Water
• Wind
• Gravity

When soil has a black or brown color, this often means it has a high quantity of what in it?

• Humus
• Silt
• Clay

When hiking or riding off-road vehicles, it is best to ________________ in order to reduce the erosion of soil.

• make a new path
• stay on the path
• go through the tallest grasses

All of the following EXCEPT what are natural causes of Soil Erosion?

• Glaciers
• Wind
• Construction

(a)   from trees helps to protect against erosion and adds humus to the topsoil.

Name two human activities that can disturb landscape and leave bare spots in the soil, making it more susceptible to erosion. (2 pts)

(a)