a mixture of gases that surround the earth

• thermosphere
• Troposphere
• Atmosphere
• Ozone Layer

The atmosphere is made up primarily of 

• Nitrogen
• Oxygen
• Carbon Dioxide
• Water Vapor

Air Pressure decrease with altitude

• True
• False

Air Temperature decrease with altitude

• True 
• False

In the layers of the atmosphere , Air temperature differences result mainly because of 

• Composition of gases
• the way solar energy is absorbed through the atmosphere
• the further you move up, the fewer molecules
• Density decrease with increase in altitude

What layer of the atmosphere do we live in?

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere

which layers contains the ozone layer?

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere

The coldest layer of the atmosphere is _________________.

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere

The warmest layer of the atmosphere is ____________________.

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere

The upper mesosphere and the lower thermosphere is home to the aurora or shimmering lights and is called _______________.

• Troposphere 
• Stratosphere
• Ozone Layer
• Ionosphere