Day 3 Quiz - Nutrient Cycles

What does NOT produce carbon dioxide?

• Photosynthesis
• Burning Fossil Fuels
• Animal respiration
• Plants decaying

What process occurs when coal (fossil fuel) is used for energy?

• Decomposition
• Combustion
• Pressurization 
• Respiration 

What kind of organism takes out the most carbon from the atmosphere?

• Plants

• Bacteria

• Animals

• Humans

The process in which water vapor is released into the atmosphere through plants.

• evaporation

• transpiration

• condensation

• precipitation

The process by which water vapor turns from a gas to a liquid

• evaporation

• condensation

• collection

• precipitation

Answer explanation

Water flows from the river near Miranda's home into the Gulf of Mexico. She knows that runoff is one way that water returns to the ocean. What is the main way water leaves the ocean?

• evaporation

• condensation

• precipitation

• runoff

Which of these nitrogen cycle processes converts atmospheric nitrogen to a soil form of nitrogen that is usable by plants?

• nitrogen fixation

• nitrification

• denitrification

• ammonification

If the atmosphere is 78% N₂, why can't we just get our nitrogen by breathing?

• We have no mechanism to break the triple bond of nitrogen between the atoms.
• Our lungs would be damaged by the N2.
• We need Oxygen for cellular respiration.
• The legumes take it up first.

What is true about nutrients in the ecosystem (such as water, carbon, and nitrogen)?

• They are not affected by humans in the ecosystem.

• They cannot be recovered if they are lost in the ecosystem.

• They cycle through the ecosystem in different forms to support life.

• They are usually only found in one form in the ecosystem to support life.

A correct path that Nitrogen could take would be...

• Air--> Animals--> Plants--> Bacteria

• Air--> Bacteria--> Plants--> Animals