ET Unit 7 Review day2 5/15/24

Which statement is correct?

• matter cycles; energy cycles

• matter cycles; energy disintengrates

• matter cycles; energy converts

• matter converts; energy cycles

Which form of carbon is the most potent greenhouse gas?

• CO2

• CH4

• C6H12O6

• C3H8O3

What does the diagram indicate regarding the carbon cycle?

• Only terrestrial processes cycle carbon

• Only aquatic processes cycle carbon

• Terrestrial and aquatic processes are separate

• Both terrestrial and aquatic cycles operate together

Number one is referencing what step in the Nitrogen Cycle

• assimilation

• denitrification

• nitrification

• ammonification

Number two is referencing what step in the Nitrogen Cycle

• assimilation

• denitrification

• nitrification

• ammonification

What would happen to the nitrogen cycle if all soil bacteria died?

• All nitrogen would become nitrate permanently.

• The nitrogen cycle would occur much faster.

• No nitrogen gas could be converted to a form plants can use.

Which of these is most likely to happen when fertilizer washes off a farm field?

• eutrophication

• denitrification

• uplifting

Number three in the phosphorus cycle is referencing?

• assimilation

• uplifting

• weathering

• sedimentation

How can humans best help an endangered species avoid extinction?

• they can feed the animals
• they can put the animals in a zoo
• they can protect the animal’s habitat
• they can take the animal to new habitats

Which of the following terms describes any major changes that may occur to an ecosystem?

• Distubance

• Resiliency

• Adaptations

• Biodiversity