earths atmosphere quiz

What is the gaseous layer that surrounds the Earth called?

• Surface

• Space

• Rotation

• Atmosphere

Answer explanation

The gaseous layer that surrounds the Earth is called the atmosphere. It is essential for supporting life and protecting us from harmful radiation.

What is the main function of the atmosphere?

• To generate atmospheric pressure

• To absorb ultraviolet radiation

• To dampen temperature variations

• All of the above

Answer explanation

The main function of the atmosphere is to generate atmospheric pressure, absorb ultraviolet radiation, and dampen temperature variations. Therefore, the correct answer is 'All of the above'.

At what altitude does the atmosphere gradually become less dense?

• 16 kilometers

• 32 kilometers

• 5 kilometers

• 120 kilometers

Answer explanation

The atmosphere gradually becomes less dense at an altitude of 32 kilometers, which is the correct choice.

What is the composition of air near the Earth's surface?

• 100% oxygen

• 100% nitrogen

• 50% nitrogen, 50% oxygen

• 78% nitrogen, 21% oxygen, 1% other gases

Answer explanation

Air near the Earth's surface is composed of 78% nitrogen, 21% oxygen, and 1% other gases. This composition is the correct choice.

What is the measurement of how much water vapor is contained in a certain volume of air called?

• Humidity

• Temperature

• Pressure

• Density

Answer explanation

Humidity is the measurement of how much water vapor is contained in a certain volume of air.

What are the tiny solid particles in suspension in the air called? The tiny solid particles in suspension in the air are called (a)   .

• Gases

• Particles

• Aerosols

• Molecules

Answer explanation

The tiny solid particles in suspension in the air are called particulate matter.

What is the greenhouse effect?

• The separation of gases due to gravity

• The cooling of the Earth's surface

• The trapping of heat in the atmosphere

• The absorption of ultraviolet radiation

Answer explanation

The greenhouse effect refers to the trapping of heat in the atmosphere, which helps to warm the Earth's surface. It is caused by certain gases in the atmosphere, such as carbon dioxide, trapping and re-emitting heat energy.

What is the problem when there is an excess of greenhouse gases?

• Decreased atmospheric pressure

• Formation of clouds

• Increased humidity

• Global warming

Answer explanation

An excess of greenhouse gases causes global warming, which is the problem. It leads to increased temperatures and climate change.

Tags

NGSS.MS-ESS3-5

Air has physical properties such as _____.

Answer explanation

Air has physical properties such as pressure, temperature, and humidity. These properties affect its behavior and characteristics.

What happens to the temperature as altitude increases?

• It increases at a higher rate

• It decreases at a higher rate

• It fluctuates randomly

• It remains constant

Answer explanation

As altitude increases, the temperature decreases at a higher rate.