Study

Carbon Cycle

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