The history of irrigation in the United States can be described as:

• A gradual development from small-scale systems to large federal projects.

• A sudden invention in the 20th century.

• A practice only used in the eastern states.

• A method introduced by European settlers in the 1800s.

Sources of irrigation water include:

• Rivers, wells, canals, and tanks

• Mountains, deserts, and forests

• Roads, buildings, and vehicles

• Air, sunlight, and wind

The need for water conservation in agricultural irrigation systems is important because:

• It helps ensure sustainable water use and prevents resource depletion.

• It increases water wastage and reduces crop yield.

• It leads to soil erosion and waterlogging.

• It makes irrigation systems more expensive and less efficient.

Which of the following best describes the main function of irrigation equipment components?

• To deliver water efficiently to crops

• To harvest crops automatically

• To fertilize soil directly

• To control pest populations

Irrigation systems used for landscape and crops include which of the following?

• Drip, sprinkler, surface, and subsurface irrigation

• Only rainwater harvesting

• Only hydroponics

• Only manual watering with buckets

Irrigation system design involves which of the following processes?

• Planning water distribution to crops

• Harvesting crops

• Applying fertilizers

• Pest control

Managing and repairing an existing irrigation system involves which of the following steps?

• Regularly checking for leaks, cleaning filters, and replacing damaged parts

• Ignoring minor leaks to save water

• Only operating the system during heavy rain

• Removing all filters to increase water flow

Potential irrigation problems and solutions can include:

• Clogged pipes and regular maintenance

• Overuse of fertilizers and increased application

• Low water pressure and ignoring leaks

• Excessive rainfall and reducing irrigation

According to the information on Irrigation History, who first used irrigation in 6000 BCE?

• Egyptians

• Chinese

• Romans

• Greeks

According to the information on Irrigation History, how many million acres of farmland in the US is irrigated?

• 56 million acres

• 25 million acres

• 100 million acres

• 75 million acres