Plant Agriculture

The ecosystem in the western Plains of the United States is best described as a

• temperate desert

• temperate grassland

• deciduous forest

• wind erosion

The precipitation there, compared to the eastern United States, is

• low

• high

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

The temperature is best described as

• low

• high

• seasonal

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NGSS.MS-PS3-5

Farming in the area began with the invention of the

• tractor

• steel plow

The most-produced crop in the region at the beginning of the 20th century was

• counter wheat

• corn

Unfortunately, a massive drought struck the region, resulting in a tremendous amount of ______ the carried layers of topsoil miles and miles away.

• wind erosion

• water erosion

Many early farmers of the Western U.S. plains believed a theory called “Rain Follows the Plow.” What was the problem with this theory?

• Farming actually makes it rain less, not more.

• The climate at the time farming took place was not any different than normal.

• The usually high precipitation during this period of early farming and settling was a

  coincidence

• This theory is actually true. Farming and settling an area makes it rain more frequently

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS3-4

Which of these is false about the three staple crops?

• They make up the majority (about two-thirds) of human consumption.

• Corn (maize) is a staple crop

• Rice is a staple crop.

• At least one of the staple crops is an animal product.

The 10% rule applies to raising plants and animals on a farm, just like in an ecosystem. With that in

mind, how many pounds of grain would you expect to be needed to produce 10 pounds of beef?

• 10 pounds of grain.

• 50 pounds of grain.

• 100 pounds of grain.

• Over 250 pounds of grain

Tags

NGSS.MS-LS2-3

What soil conservation technique is shown to the right?

• Terracing

• Contour plowing

• Monoculture

• A windbreak

Tags

NGSS.MS-LS2-5