Atmosphere

Which gas in our atmosphere is most abundant?

• Argon

• Oxygen

• Nitrogen

• Carbon Dioxide

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

• 1%
• 21%
• 78%
• 90%

The layers of the atmosphere are classified according to changes in _________.

• altitude
• density
• composition
• temperature

This layer is where weather occurs.

• troposphere
• thermosphere
• exosphere
• stratosphere

The layer of the atmosphere that protects us from the Sun the most is called the ____________.

• ozone

• troposphere

• mesosphere

• exosphere

The basic composition of air can consist of:

• Nitrogen 21%, Oxygen 78%, Trace Gases 1% of the Earth's atmospheric composition.
• Nitrogen 1%, Oxygen 78%, Trace Gases 21% of the Earth's atmospheric composition.
• Nitrogen 78%, Oxygen, 21%, Trace Gases 1% of the Earth's atmospheric composition.
• Nitrogen .001%, Oxygen 78%, Trace Gases 21.9 % of the Earth's atmospheric composition.

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

• 1%
• 21%
• 78%
• 90%

Which layer of the atmosphere contains the greatest amount of water vapor?

• Thermosphere
• Troposphere
• Mesosphere
• Stratosphere

What decreases as you go up in the atmosphere?

• Altitude
• Atmosphere
• Meteors
• Air Pressure

What is the outer most main layer of Earth's atmosphere?

• Thermosphere
• Troposphere
• Stratosphere
• Mesosphere