Water in Agriculture

What amount of the water on the earth is salt water?

• 25%
• 72%
• 97%
• 99%

Categorically, the largest consumer of water in the U.S. is for what purpose?

• agriculture
• industry
• municipal
• recreation

Water is released directly on the roots of the plants

• drip irrigation

• furrow irrigation

• sprinkler irrigation

• chemical fertlizer

What is evaporation?

• The part of the water cycle when the sun heats up water, turning it from a liquid into water vapor or steam. It rises from the ground into the air.
• The part of the water cycle when the water vapor in the air gets cold. The water turns back into a liquid and forms clouds.
• The part of the water cycle when clouds get heavy and can no longer hold the liquid water. This causes the water to fall from the sky to the earth as rain, snow, sleet, or hail.

What is condensation?

• The part of the water cycle when the sun heats up water, turning it from a liquid into water vapor or steam. It rises from the ground into the air.
• The part of the water cycle when the water vapor in the air gets cold. The water turns back into a liquid and forms clouds.
• The part of the water cycle when clouds get heavy and can no longer hold the liquid water. This causes the water to fall from the sky to the earth as rain, snow, sleet, or hail.

Which best explains why runoff is important?

• It returns water to other locations on Earth
• It increases the chance of flooding
• It makes evaporation occur faster
• It increases condensation

What is it called when plants give off water vapor as a waste product?

• condensation
• evaporation
• sublimation
• transpiration

What is the process that brings water to the farm areas where farmers do not have access to water?

• An extra long soaker hose

• hydroelectric power

• irrigation

• desalination

Pollution that comes from MANY different places and is hard to identify its source.

• Point

• Non-Point

Pollution that comes from a single source

• Point

• Non-Point