Exploring the Carbon Cycle Processes

What percentage of the human body is made up of carbon?

• 25%

• 10%

• 30%

• 18%

What process describes the constant movement of carbon from place to place?

• Water Cycle

• Nitrogen Cycle

• Carbon Cycle

• Oxygen Cycle

What forms when carbon dioxide in the air reacts with calcium in the water?

• Calcium Chloride

• Calcium Carbonate

• Calcium Nitrate

• Calcium Sulfate

What do marine animals use to make their shells or exoskeletons?

• Silica

• Calcium Carbonate

• Phosphate

• Magnesium

What is released into the atmosphere when humans burn fossil fuels?

• Methane

• Carbon Dioxide

• Nitrogen

• Oxygen

How do trees use carbon dioxide?

• To absorb water

• To produce oxygen

• To make sugar for energy

• To create proteins

What happens to the carbon in human bodies after they die?

• It is stored in the ground

• It is released back into the atmosphere

• It becomes rocks or fossil fuels

• All of the above

What causes global warming?

• Too much oxygen

• Too much nitrogen

• Too much methane

• Too much carbon dioxide

What happens to the ocean when it absorbs extra carbon?

• It becomes more alkaline

• It becomes more saline

• It becomes more acidic

• It becomes more basic

What actions can help protect our planet from excess carbon dioxide?

• Cutting down more trees

• Burning more fossil fuels

• Planting more trees

• Using more plastic