Which of the following is the least effective irrigation system in terms of conservation of water?
Surface irrigation
Aerial irrigation
Subsurface irrigation
Sprinkler irrigation
Which of the following area are most associated with physical water scarcity?
Arid regions
Semi-arid regions
Regions where water resources are over committed
All of the above
Which of the following is the most effective irrigation system in terms of conservation of water?
What is the situation when demand for water exceeds the available amount during a certain period or when poor quality restricts its use, called?
Water scarcity
Water crisis
Water saturation
Water stress
Which of the following makes thermal desalination a comparatively inexpensive method for Middle East to distill water?
High room temperatures
High rates of annual precipitation
Greater availability of waste gas produced by oil wells
Which of the following countries withdraw more water from its rivers and aquifers each year than is being replenished?
Yemen
Jordan
Israel
What is the relatively clean waste water, such as from kitchen and laundry cycles are called?
Blue water
Green water
Grey water
Ground water
Which is the process where pressure is used in desalination?
Evaporation
Reverse Osmosis
Condensation
The part of total precipitation that keeps the soil moist is called:
Which of the following is the largest source of drinking water on a global scale?
Aquifers
Lakes
Rivers
Backwaters