Study

Carbon Cycle

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  • What is the process called when a substance combines with oxygen to release light and heat?
    Photosynthesis
    Respiration
    Combustion
    Decaying
  • When plants/animals die, the carbon in their body is either released or stored as fossil fuels.
    False
    True
  • This is a green pigment molecule that absorbs energy from sunlight...
    Cellular Respiration
    Photosynthesis
    Glucose
    Chlorophyll
  • Oceans play a major role in the carbon cycle by absorbing carbon dioxide.
    False
    True
  • Carbon is released into the atmosphere when fossil fuels are burned.
    False
    True
  • The rainforest does not help remove carbon from the atmosphere.
    True
    False
  • Which human activity DOES NOT help remove carbon dioxide from the carbon cycle?
    Planting Trees
    Eating fast food
    Burning less fossil fuels
    Restpring habitats
  • Burning fossil fuels like coal, gas, and oil releases little carbon into the air.
    False
    True
  • How much carbon is in the human body?
    30%
    25%
    18%
    8%
  • Respiration traps carbon into compounds and photosynthesis releases it.
    False
    True
  • This is what carbon is recycled through and can take millions of years...
    Fast Track
    Chlorophyll
    Slow Track
    Decomposers
  • Ocean water does a lot to remove excess carbon from the atmosphere.
    True
    False
  • Plants, animals, and most other living things combine oxygen with glucose during...
    Photosynthesis
    Decomposers
    Producers
    Aerobic Respiration
  • Humans can only impact the carbon cycle in a negative way.
    True
    False
  • These breakdown the remains of dead organisms...
    Decomposers
    Greenhouse Gases
    Fossil Fuels
    Factory Emissions
  • Carbon dioxide is also released from rock through weathering and erosion.
    True
    False
  • The process through which green plants use the energy of sunlight to make food is called...
    The Carbon Cycle
    Fossil Fuels
    Combustion
    Photosynthesis
  • Millions of yrs ago, remains of plants became buried in sediment under swamps and became coal.
    True
    False
  • Plants, algae, and some bacteria are known as...
    Glucose
    Producers
    Chloroplasts
    Chlorophyll
  • Pick one way that carbon is released into the air.
    The Ocean
    Photosynthesis
    Respiration
  • How is carbon involved in photosynthesis?
    Carbon in fossil fuels is released through burning.
    Organisms release carbon from bodies of dead animals.
    Animals break down the glucose to release carbon in CO2.
    Plants use carbon from carbon dioxide to make glucose.
  • Each time you exhale (breathe) you are releasing carbon dioxide into the air.
    False
    True
  • ________ break down the carbon compounds when organisms die and release carbon as CO2.
    Producers
    Respiration
    Consumers
    Decomposers