The Carbon Cycle

Multiple Select

Which of the four major macromolecules require carbon in order to be built?

• Proteins

• Nucleic Acids

• Lipids

• Carbohydrates

Multiple Choice

What is the left part of a chemical equation called?
2H_{2 +} O₂ --> 2H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation 

Multiple Choice

What is the right part of a chemical equation called?

2H_{2 +} O₂ --> 2H₂O

• Reactants

• Products

• Yields

• Chemical Equation

Multiple Choice

If reaction starts with 20g of reactants, it will produce ---

• a total of 40g of product

• a total of 10g of product

• a total of 80 g of product

• a total of 20g of product

Multiple Choice

Which picture below would correctly demonstrate the Law of Conservation of Matter if this picture is the reactants?

Multiple Choice

Which of the following is NOT part of the Law of Conservation of Matter?

• Matter cannot be created or destroyed

• Matter can be rearranged

• Fire converts matter to heat

• Matter can change phase; go from a solid to a liquid to a gas

Multiple Choice

Carbon emitted by humans (for the most part) directly ends up in which reservoir?

• Deep Ocean

• Soil

• Plant Biomass

• Atmosphere

Multiple Choice

What process causes carbon flux from the atmosphere to the biosphere?

• Cellular Respiration

• Decomposition

• Photosynthesis

• Combustion

Multiple Select

What processes cause carbon to flux from terrestrial (land) reservoirs back to the atmosphere?

• Photosynthesis

• Respiration

• Decomposition

• Burial

Multiple Choice

Through the process of photosynthesis, carbon atoms start off as part of____________ and through a chemical change end up a part of ______________

• six carbon dioxide molecules; one glucose

• six glucose molecules; one carbon dioxide molecule

• any organic matter; one carbon dioxide molecule

• six carbon dioxide molecules; six water molecules

Multiple Choice

Through the process of cellular respiration, carbon atoms start off as part of____________ and through a chemical change end up a part of ______________

• six carbon dioxide molecules; one glucose molecule

• Any organic matter; six water molecules

• one glucose molecule; six carbon dioxide molecules

• six carbon dioxide molecules; Heat

Multiple Choice

Carbon exchanges between terrestrial and aquatic biology can be described as....

• Really Slow

• Slow

• Fast

Multiple Choice

Carbon exchanges between the deep ocean and the atmosphere can be described as....

• Really Slow

• Slow

• Fast

Multiple Choice

In the Atmosphere - Hydrosphere interaction, gas exchange occurs directly between...

• The atmosphere and the deep ocean

• The atmosphere and the surface ocean

• The atmosphere and the deep biosphere

• Reactive sediments and the atmosphere

Multiple Choice

What processes causes carbon flex from the geosphere to the atmosphere and from the atmosphere to the geosphere?

• Erosion

• Weathering

• Volcanic Activity

• Burial

Multiple Choice

Carbon exchanges between rocks (geosphere) and the atmosphere can be described as...

• Really Slow

• Slow

• Fast

Multiple Choice

Why does atmospheric carbon dioxide concentration fluctuate throughout the year (red line)?

• During parts of the year carbon dioxide is higher up in the atmosphere where sensors can't measure it.

• The temperature causes the concentration to be different across the year

• The changing balance of photosynthesis and respiration cause this fluctuation

• Increases and decreases of volcanic activity cause this fluctuation.

Multiple Choice

How has the concentration of carbon dioxide (parts per million) in the atmosphere changed over the past 60 years?

• It is remaining constant

• It is decreasing

• In is increasing and then decreasing (fluctuating)

• It is steadily increasing