Layers of the Atmosphere
Outermost atmospheric layer
What is the Exosphere?
Harms organisms
What is acid precipitation?
Provides nutrients to living things
What is Nitrogen?
Atmospheric effect that keeps Earth warm enough to support life
What is the Greenhouse effect?
Measures of how safe the air is for human health
What is air quality index?
Hottest layer of the atmosphere
What is the Thermosphere?
Can be inhaled and cause asthma/bronchitis
What is particulate matter?
Contains different gases
What is Earth's atmosphere?
Number of main greenhouse gases
What is 3?
Air quality is satisfactory and poses little or no risk
What is good?
Middle layer of the atmosphere
What is Mesophere?
Contamination of air by harmful substances including gas and smoke
What is air pollution?
Foundation of life
What is Carbon Dioxide?
Allows sunlight to pass through on the way from the sun to Earth's surface
What are greenhouse gases?
Number value in hazardous level
What is 301-500?
Atmospheric layer directly above Earth
What is the Troposphere
Sets and enforces pollution control standards
What is the Environmental Protection Agency (EPA)?
Needed by plants and animals
What is Oxygen?
Main greenhouse gases
What is methane, water vapor and carbon dioxide?
______ Alert! causes serious health affects
What is health?
Layer where satellites hover
What is the Stratosphere?
Large factories, power plants and erupting volcanoes
What is the point source?
Keeps Earth warm, Protects us from meteoroids, and provides oxygen and water
What are the benefits of Earth's atmosphere?
The gases prevent much of the _______ energy
What is infrared?
Members who experience health effects
What are sensitive groups?