carbon cycle abiotic biotic

What is the role of plants in the carbon cycle?

• Plants release carbon dioxide during photosynthesis.
• Plants take in carbon dioxide during respiration.
• Plants help to keep the balance of carbon in the atmosphere by releasing oxygen during photosynthesis.
• Plants store carbon in rocks and fossil fuels.

Where do plants and animals get nitrogen from?

• The air
• The soil
• The oceans
• The atmosphere

What is the purpose of biogeochemical cycles like the carbon and nitrogen cycles?

• To maintain the balance of elements in ecosystems
• To release carbon dioxide into the atmosphere
• To make sure all living things have enough oxygen
• To decompose plants and animals

What is the role of plants in the carbon cycle?

Where is nitrogen stored in the environment?

Why are biogeochemical cycles important for ecosystems?

How does the carbon cycle impact your daily life?

In what ways do you see the nitrogen cycle at work in your local environment?

What actions can you take to protect and support the carbon and nitrogen cycles in your community?