Quiz #2 Review Carbon cycle and feedback - Standard 2-6/2-2

The following is an example of what type of feedback loop?

• Negative Feedback Loop
• Neutral Feedback Loop
• Positive Feedback Loop
• Global Warming Feedback Loop

What process does the purple arrow indicate?

• Respiration
• Photosynthesis
• Combustion
• Decomposition

In a volcanic eruption, carbon dioxide dissolved in magma is released into the atmosphere during the explosion. What transition is described here?

• Biosphere to geosphere
• Hydrosphere to biosphere
• Geosphere to atmosphere
• Atmosphere to hydrosphere

Which of the following images shows a transition from the biosphere to the geosphere?

• Image A
• Image B
• Image C
• Image D

When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.

• Water
• Atmosphere
• Sun
• Air

What does not produce carbon dioxide?

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

How do living organisms return carbon to the atmosphere in the carbon cycle?

• respiration and photosynthesis
•  decomposition and respiration

Where can most of the carbon be found?

• The atmosphere

• Inside of the Earth

• Fossil fuels

• Inside living things

_____________ is an essential element of all living creatures.

• Gold

• Carbon

• Carbon dioxide

• Silver

Over ________________ of years, once-living matter that remains in the ground can transform into fossil fuels.

• millions

• hundreds

• thousands

• a few handful