Study

Carbon Cycle

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