Water
What are the three may ways humans use fresh water?
Agricultural, industrial, and personal
What layer of the atmosphere is responsible for weather?
Troposphere
What was the key feature of the Clean Air Act?
Sets air quality standards
What is the chemical compound of water?
Two Hydrogen
One Oxygen
What process involves the transfer of heat through direct contact between two objects?
Conduction
What is a watershed?
A reservoir that stores water
What layer of the atmosphere contains the ozone layer?
Stratosphere
What is smog made of?
Smoke and fog
What legislation regulates point-source water pollution?
The Clean Water Act
What is the most abundant gas in the atmosphere?
Nitrogen
Which industry uses the most water globally?
Agriculture
Which layer of the atmosphere burns meteoroids?
Mesosphere
What is the primary environmental benefit of scrubbers in factories?
Removing harmful pollutants from smokestack emissions
What type of pollution occurs when erosion increases sediment build up in water?
Sediment Pollution
What happens during thermal pollution?
Water temperature rises, lowering oxygen levels
What is desalination?
Process of removing salt from saltwater to make fresh water
Which weather front brings light precipitation as warm, moist air meets cooler air?
Warm front
What is the primary purpose of catalytic converters?
To reduce the harmful vehicle emissions
How does thermal pollution affect aquatic ecosystems?
Heated water holds less oxygen
What is eutrophication?
Nutrient build up causing excessive algae growth
What separates the zone of saturation from the zone of aeration?
The water table
What is the primary composition of Earth’s atmosphere?
78% nitrogen, 21% oxygen, 1% other gases
Which air pollutant can interfere with the body’s ability to use oxygen?
Carbon Monoxide
Excess nutrients in water is called what?
Eutrophication
What percent of Earth is water?
71%