Energy in Earth's Atmosphere

The direct transfer of energy by electromagnetic waves is called ________. 

• radiation
• infrared radiation
• ultraviolet radiation 

__________ is not visible by humans, but can be felt as heat. 

• radiation
• infrared radiation
• ultraviolet radiation
• visible light

The sun gives off ______________ which can cause sunburns.

• radiation
• infrared radiation
• ultraviolet radiation
• visible light

Nearly all the energy in Earth's atmosphere comes from the sun and travels to Earth as ________________. 

• electromagnetic waves
• in a limo
• radiation
• visible light

True or False. Different wavelengths of radiation are absorbed by different layers in the atmosphere. 

• True
• False

Dust-size particles and gases in the atmosphere disperse light in all directions which is a process called ___________. 

• atmosphere
• scattering
• visible light

True or False. About 50% of the energy that reaches Earth's surface is absorbed by land and water and changed into heat. 

• True
• False

True or False. Some of Earth's surface radiates some energy back into the atmosphere as infrared radiation. 

• True
• False

The __________ keeps the Earth's atmosphere at a temperature that is comfortable for most living things. 

• greenhouse effect
• radiation
• Old Man Winter

True or False. Most sunlight is absorbed by humans. 

• True 
• False