Carbon Dioxide/ Oxygen Cycle

Discover the carbon dioxide oxygen cycle! Learn how plants and animals breathe.

Many types of plants grow in a forest ecosystem. How do plants affect the air that forest animals breathe? Plants use oxygen from the air to make food. Plants release pollution into the air. Plants release energy from the sun into the air. Plants take in carbon dioxide and release oxygen into the air. Which gas in the air would increase if a large number of trees were cut down? Oxygen Carbon Dioxide Nitrogen Water Vapor The picture illustrates the process by which plants use sunlight, water, and carbon dioxide to make sugar. Oxygen and water are given off in the process as waste products. The process by which plants make their own food is called— Transpiration Osmosis Photosynthesis Respiration In the picture above, what gas is being released by the plant into the test tube? Carbon Dioxide Oxygen Hydrogen Nitrogen Which gas is given off by animals during the carbon dioxide cycle? Nitrogen Oxygen Carbon Dioxide Hydrogen Which of the following would be most likely to cause an increase in the average level of carbon dioxide in the atmosphere? extinctions of animals an abundance of plant life on Earth a large number of forest fires a large number of solar-powered homes Sort each organism into the correct category. Take in Oxygen fish tiger human puppy newborn whale turtle Take in Carbon Dioxide rose bush oak tree pine tree grass shrubs Animals, including humans, rely on plants for food and shelter materials. What other resource do animals get from plants? air soil oxygen carbon dioxide