Water

Hydroponics-Which Hydroponics system floods a tray with nutriens then draining it back to the reservoir?
1. water culture system
2. aeroponic system
3. Ebb and Flow system
4. Drip system
Global Warming-What percent of greenhouse gasses is water vapor?
1. 53%
2. 75%
3. 7%
4. 31%
Arctic Ownership-Canada wants to use what type of vehicle to map The Arctic Ocean's seabed?
1. AUVs(Autonomuos Underwater Vehicle)
2. military boats
3. planes
4. submarines
Water Pollution-Which of these pollutants can stop plants from gaining as much sunlight as they usually do?
1. sulfur
2. oil
3. lead
4. nitrates
Overfishing-which group of fish is extict from overfishing?(the rest are endangered)
1. Caviar,Swordfish,Alabama Shad
2. Silver Trout, Blue Pike, Wild common carp
3. Zona,Orange Roughy, Silver shark
4. Mexican Dace, June Sucker, Ameca Shiner
Bottled Water- How much money, world wide is used to buy bottled water?
1. $86.4 billion
2. $10 billion
3. $10 million
4. $7.7 billion
Desalination-What is desalination
1. The process of taking the salty minerals from the water.
2. the machine that takes the minerals out of the water.
3. the process ofseperating the water into different products
4. the way the water flows
Recreation- Which acticity does NOT include always being in or on the water?
1. swimming
2. fishing
3. boating
4. seadooing
Hydroelectricity-Which is an advantage of hydroelecticity?
1. it doesn't depend on rain
2. it will not change water quality
3. it is at a low cost
4. it causes less polution
human water needs-What is water NOT used for?
1. fountains
2. cleaning
3. eating
4. bathing