atmosphere

Which of the following best describes the atmosphere's composition?

• A mixture of gases with varying percentages
• A uniform mixture of gases
• A solid layer surrounding the Earth
• A liquid layer that supports marine life

Which gas makes up the largest percentage of the Earth's atmosphere?

• Oxygen
• Carbon Dioxide
• Nitrogen
• Argon

How does the temperature change as you move from the troposphere to the stratosphere?

• It fluctuates wildly
• It remains constant
• It decreases
• It increases

In which layer of the atmosphere does temperature begin to increase with altitude?

• Mesosphere
• Troposphere
• Exosphere
• Stratosphere

In which layer of the atmosphere do most weather phenomena occur?

• Thermosphere
• Stratosphere
• Mesosphere
• Troposphere

Which layer of the atmosphere is known for containing the ozone layer?

• Thermosphere
• Mesosphere
• Stratosphere
• Troposphere

What is the primary role of the ozone layer found in the stratosphere?

• To support plant life
• To absorb and scatter ultraviolet solar radiation
• To regulate temperature
• To provide breathable air

Which layer of the atmosphere is known to be the coldest?

• Mesosphere
• Troposphere
• Stratosphere
• Exosphere

Which layer of the atmosphere is where the auroras occur?

• Stratosphere
• Troposphere
• Thermosphere
• Mesosphere

What is one of the primary functions of the atmosphere in relation to life on Earth?

• To filter harmful solar radiation
• To support aquatic life
• To provide a source of energy
• To create weather patterns