Study

Carbon Cycle

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  • Humans are the only living organisms that release carbon dioxide into the atmosphere.
    False
    True
  • Ocean water does a lot to remove excess carbon from the atmosphere.
    True
    False
  • Pick one way that carbon is released into the air.
    Photosynthesis
    The Ocean
    Respiration
  • What is the process that plants use to capture carbondioxide?
    Eating
    Respiration
    Photosynthesis
    Decomposition
  • Which human activity DOES NOT help remove carbon dioxide from the carbon cycle?
    Eating fast food
    Restoring habitats
    Burning less fossil fuels
    Planting Trees
  • What things need nutrients to survive?
    Living things
  • When plants/animals die, the carbon in their body is either released or stored as fossil fuels.
    True
    False
  • What does consumed mean?
    Eaten
  • What is the process called when a substance combines with oxygen to release light and heat?
    Photosynthesis
    Combustion
    Respiration
    Decaying
  • 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.
    False
    True
  • Respiration traps carbon into compounds and photosynthesis releases it.
    True
    False
  • 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...
    Photosynthesis
    Combustion
    Fossil Fuels
    The Carbon Cycle
  • Burning fossil fuels like coal, gas, and oil releases little carbon into the air.
    True
    False
  • How much carbon is in the human body?
    30%
    8%
    25%
    20%
  • Carbon is released into the atmosphere when fossil fuels are burned.
    False
    True
  • Plants, algae, and some bacteria are known as...
    Chlorophyll
    Chloroplasts
    Producers
    Glucose
  • These breakdown the remains of dead organisms...
    Greenhouse Gases
    Fossil Fuels
    Decomposers
    Factory Emissions
  • More carbon is made every day
    True
    False
  • Photosynthesis is a process that animals do
    False
    True
  • How is carbon involved in photosynthesis?
    Animals break down the glucose to release carbon in CO2.
    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.
  • What is the process where decomposers release carbon dioxide?
    Respiration
    Decomposition
    Photosynthesis
    Eating
  • This is a green pigment molecule that absorbs energy from sunlight...
    Photosynthesis
    Glucose
    Chlorophyll
    Cellular Respiration
  • Carbon dioxide is also released from rock through weathering and erosion.
    True
    False
  • Humans can only impact the carbon cycle in a negative way.
    True
    False
  • The rainforest does not help remove carbon from the atmosphere.
    True
    False
  • ________ break down the carbon compounds when organisms die and release carbon as CO.
    Producers
    Consumers
    Decomposers
    Respiration
  • What is the process where animals release carbon dioxide?
    Photosynthesis
    Decomposition
    Eating
    Respiration
  • Oceans play a major role in the carbon cycle by absorbing carbon dioxide.
    False
    True