Understanding the Carbon Cycle

What element is the fourth most abundant in the universe and vital for life on Earth?

• Oxygen

• Carbon

• Nitrogen

• Hydrogen

What are the two main forms of carbon?

• Graphite and Diamonds

• Coal and Diamonds

• Charcoal and Suit

• Coal and Charcoal

Which process allows plants to create their own food using sunlight?

• Respiration

• Digestion

• Fermentation

• Photosynthesis

How does carbon move from the atmosphere to plants?

• Through water

• Via soil

• By photosynthesis

• Through respiration

What role does carbon dioxide play in the atmosphere?

• It absorbs sunlight

• It cools the Earth

• It acts as a greenhouse gas

• It produces oxygen

What is causing the Earth to become warmer?

• Excess carbon being released

• Too much oxygen

• Decrease in carbon dioxide

• Not enough sunlight

Which action can help slow the effects of climate change?

• Planting more trees

• Cutting down more trees

• Increasing carbon emissions

• Using more fossil fuels

What is a solution to help balance the carbon cycle?

• Decrease animal populations

• Increase use of solar and wind power

• Reduce plant growth

• Use more coal and oil

True or False: Carbon is the basic building block of all living and non-living things.

• Only for living things

• Only for non-living things

• False

• True

What is necessary to create food for plants and animals?

• Nitrogen, water, and sunlight

• Carbon, oxygen, and sunlight

• Oxygen, hydrogen, and carbon

• Hydrogen, carbon, and nitrogen