1. Earth's atmosphere reflects or absorbs some sunlight but allows most of the visible light pass through to Earth's surface.
Atmosphere affects light in 4 ways:
absorb light
reflect light
let light pass through it
can emit (give off) light
Ozone: A protective layer of gas that is made of the three atoms of Oxygen.

2. List Characteristics for the Ozone: * Protectant in the Stratosphere
* Pollutant in the Troposphere
* Protects Earth by absorbing UV Rays
Ultraviolet Radiation:
More energy than visible light, can cause sunburn & damage tissue
Infrared Radiation
Less energy than visible light
Warms materials that absorb it
Both
Waves of energy

3. The Ozone protects Earth by:
Absorbs harmful ultraviolet radiation from the sun, while allowing other types of radiation, such as visible light & infrared radiation, to get through
Describe 3 characteristics for Greenhouse
Effect:
1. Caused by greenhouse gases
2. Gases absorb infrared radiation
3. Gases give off infrared radiation

4. Describe greenhouse gases and list examples
The gases that cause the greenhouse effect
Water vapor
Carbon Dioxide
Methane
Nitrous Oxide
How does the greenhouse effect interact with
the Sun’s energy?
Solar radiation heats Earth’s surface, and the surface gives off infrared radiation. The greenhouse gases absorb some of the infrared radiation. The gases release the radiation, and some of it warms Earth.