Combustion and Processes Quiz

Explain the process of combustion.

• The process by which a substance combines with oxygen to give off heat

• The process by which a substance breaks down into simpler substances

• The process by which a substance absorbs CO2 from the atmosphere

• The process by which a substance is preserved over time without change

How are combustion, respiration, and decomposition similar to each other?

• They all involve the release of energy without oxygen

• They all involve the absorption of CO2 from the atmosphere

• They all involve the breakdown of substances into simpler forms

• They all involve the combination of substances with oxygen to release energy

What are some processes that take CO2 out of the atmosphere?

What drives the geologic carbon cycle on Earth?

• The rotation of the Earth around the sun

• The movement of the Earth's tectonic plates

• The gravitational pull of the moon

• The photosynthesis process in plants

Which of the following is a part of the geologic carbon cycle?

• Respiration by animals

• Chemical weathering

• Decomposition of organic matter

• Absorption of CO2 by animals

How does the speed of geological processes compare to the growth of fingernails?

• Geological processes are about 10 times faster

• Geological processes are about as fast as fingernails grow

• Geological processes are about half as fast as fingernails grow

• Geological processes are about twice as fast as fingernails grow

What is the impact of the biological carbon cycle on CO2 levels compared to the geologic carbon cycle?

• It has a smaller impact

• It has about the same impact

• It has a bigger impact

• It has no impact

How does sea surface temperature affect the amount of carbon dioxide in the water?

• Cold water gives off CO2 to the atmosphere

• Warm water absorbs more CO2 from the atmosphere

• Cold water absorbs CO2 from the atmosphere

• Sea surface temperature has no effect on CO2 absorption

What is formed when CO2 combines with rainwater?

• Sulfuric acid

• Nitric acid

• Carbonic acid

• Hydrochloric acid

What is the process called when carbonic acid dissolves rocks such as limestone and marble?

• Physical weathering

• Chemical weathering

• Biological weathering

• Erosion