The Characteristics of the Atmosphere

Multiple Choice

Which layer of the atmosphere contains clouds and weather? (click to enlarge picture)

• Therosphere

• Mesosphere

• Stratosphere

• Troposphere

Multiple Choice

When a plants takes carbon dioxide from the air which two spheres are interacting? 

• Biosphere and atmosphere 
• Geosphere and atmosphere 
• Hydrosphere and atmosphere 
• Atmosphere and atmosphere 

Multiple Choice

What is the composition of the atmosphere?

• A mixture of gases (air)

• H2O (vapor)

• Particulates - tiny pieces of solid matter

• All of the above

Multiple Choice

Why is the atmosphere important?

• It protects us from ultraviolet radiation.

• It helps regulate temperature.

• It allows life to exist on Earth.

• It provides oxygen for breathing.

Multiple Choice

For the Earth's atmosphere, section number two in the pie graph BEST represents the percentage of

• argon

• carbon dioxide

• oxygen

• nitrogen

Multiple Choice

How do nitrogen-fixing bacteria benefit plants?

• By converting nitrates into ammonia

• By converting atmospheric nitrogen into a form plants can use

• By releasing nitrogen gas into the atmosphere

• By decomposing organic matter

Open Ended

Explain the role of denitrifying bacteria in the nitrogen cycle as shown in the image.

Open Ended

What is the greatest source of water entering the atmosphere? Describe two other ways that water enters the atmosphere. What role does the Sun play in all of this?

Multiple Choice

What is the role of Carbon Dioxide in the Earth's atmosphere?

• It is a greenhouse gas that cools the atmosphere

• It is a greenhouse gas that is linked to the warming of the atmosphere

• It is a harmful gas that affects human health

• It is a gas that has no impact on the atmosphere

Open Ended

What is the greenhouse effect and how does carbon dioxide contribute to it?

Multiple Choice

According to the picture, what does the Ozone Layer do?

• Stops almost all UV rays.
• Stops most UV-B Rays
• Stops most UV-A Rays

Multiple Choice

Some Solar radiation doesn't reach Earth because _____

• it is reflected off particles in the atmosphere
• it is absorbed by clouds and particles in the atmosphere
• it is reflected off clouds
• all are correct

Multiple Choice

What are the potential sources of particulates as shown in the images?

• Wildfires

• Volcanic eruptions

• Pollen

• All of the above

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident