Study

Carbon Cycle

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