The state of the atmosphere at any given time is called

• climate
• weather
• forecast
• precipitation

The ozone layer protects us from

• the solar wind
• solar flares
• Ultra Violet Radiation
• extreme temperatures

The layer of the atmosphere that is closest to the Earth's surface and contains all weather is called

• ionosphere
• stratosphere
• troposphere
• mesosphere

meteors burn up in what layer of the atmosphere

• troposphere
• stratosphere
• mesosphere
• ozonosphere

Which gas in our atmosphere is most abundant?

• Argon
• Oxygen
• Nitrogen
• Carbon Dioxide

The air in the troposphere has a greater density than the air in any other layer of the atmosphere,

• True
• False

Temperature in the stratosphere warms as altitude increases.

• True
• False

Temperature decreases as altitude increases in the Thermosphere.

• True
• False

What percentage of our atmosphere is made up of other gases such as argon, water vapor, and carbon dioxide?

• 1%
• 21%
• 78%
• 90%

What is the percentage of oxygen in Earth's atmosphere?

• 1%
• 21%
• 78%
• 90%