NC Atmosphere Review

Which layers of atmosphere does temperature decrease as altitude increase?

• Troposphere and Mesosphere
• Mesosphere and Exosphere
• Stratosphere and Troposphere
• Stratosphere and Thermosphere

As altitude increase,air pressure______and gas molecules denisity______

• decreases; increases
• decreases; decreases
• remains constant; increases
• increases; increases

Which best describes the troposphere as altitude increases?

• Air pressure increases with altitude.
• Temperature increases with altitude.
• Humidity remains constant with altitude.
• Temperature decreases with altitude.

Where on Earth is the air pressure the greatest?

• In the middle of the Sahara Desert
• At the top of a skyscraper in New York City
• At the summit of Mount Everest
• At sea level

The layers of the atmosphere are PRIMARILY classified by?

• Humidity levels
• Temperature gradients
• Chemical composition of gases
• Air pressure variations

What best explains how and why air pressure changes with altitude?

• Air pressure decreases with altitude due to the reduction in the weight of the air above.
• Air pressure fluctuates randomly with altitude without any specific pattern.
• Air pressure remains constant regardless of altitude changes.
• Air pressure increases with altitude due to the expansion of air.

Why do we not feel crushed by the weight of the atmosphere?

• We are protected by a force field around the Earth.
• The atmosphere is too thin to exert any pressure.
• Our bodies are made of materials that resist atmospheric pressure.
• We do not feel crushed by the weight of the atmosphere because our bodies exert an equal pressure outward.

This is the measure of mass divided by volume.

It describes how tightly the molecules are packed in a substances such as atmospheric gases.

• Volume
• Density
• Mass
• Pressure

What is the 2 most common gases in the atmosphere?

• Methane and Ozone
• Hydrogen and Helium
• Carbon Dioxide and Argon
• Nitrogen and Oxygen

What is the most common gas found all layers of the atmosphere?

• Oxygen
• Carbon Dioxide
• Helium
• Nitrogen