ENS Ch 9 – Soil and Agriculture – Flashcards

The process of soil quality declining in productivity is called ________.

When decomposers break down organic molecules, a crumbly organic material that improves soil quality called _____ is formed.

Which of the following particles is smallest?

Land degradation affects up to _____ of the world's people.

Arid and semiarid environments cover about _____ of Earth's land surface.

Which of the following soil conservation strategies involves plowing furrows perpendicular to the slope of land to prevent erosion?

_____ occurs when salts build up in the surface of soil.

Most of the rangeland in the United States is owned and managed by the ________.

Under the _____ Program, the government pays landowners to protect and restore wetlands on their property.

A grain of what size would be most likely to cause surrounding grains to become airborne?

Which of the following correctly shows the order for grains that would blow the least distance to grains that would blow the greatest distance?

Which of the following particles made up the dust that gave the Dustbowl its name?

Monoculture farming ________.

Industrial agriculture ________.

Water diversion and pumping has allowed humans to grow crops in areas where natural supplies have been limited. A major challenge that exists in these regions has been ________.