5.3 Water Resources 2

5.3 Water Resources 2

Multiple Choice

Least likely solution to groundwater depletion

• encourage privatization of water utilities
• set and enforce minimum stream flows
• grow more drought resistant crops in arid areas
• subsidize water conservation

Multiple Choice

Which agricultural method would have the greatest impacts on reducing irrigation water use?

• polyculture
• organic farming (composting, non-GMO, no pesticides, etc)
• center-pivot, or drip irrigation systems
• tilling

Multiple Choice

Disadvantages of desallinization

• Economic cost
• Affects salinity levels in nearby aquatic ecosystem
• High energy cost
• all of the above

Multiple Choice

Not associated with desalinization

• membrane filtration
• reverse osmosis
• distillation
• chlorination

Multiple Choice

Based on the table, water stress would be greatest in...

• Asia
• North and Central America
• Europe
• South America and Caribbean

Multiple Choice

What do we call the land area that supplies water to a river system?

• runoff
• recharge
• watershed
• valley

Multiple Choice

The greatest use of fresh water is for:

• industry

• irrigation

• small businesses

• homes

• mining

Multiple Choice

A stair-like structure that allows migrating fish to get around a dam.

• dike
• levee
• fish ladder
• dam

Multiple Choice

One method of desalination uses high pressure to force saltwater through a membrane filter. This method is called

• diffusion
• distillation
• reverse osmosis
• active transport

Multiple Choice

Desalination is

• removing salt from water
• removing oil from water
• removing toxic chemicals from water
• adding salt to water

Multiple Choice

What is the most effective type of irrigation?

• center pivot method

• flood irrigation

• drip irrigation

• using sprinklers

Multiple Choice

Disadvantages of desallinization

• Economic cost
• Affects salinity levels in nearby aquatic ecosystem
• High energy cost
• all of the above