WorksheetsCarbon Cycle
Total questions: 15
Worksheet time: 15mins
Which gas do plants release, that humans depend on for survival?
Water
Carbon Dioxide
Oxygen
Sugar
Plants use ____________ to make their own food
Water
Sunlight
Carbon dioxide
All of these
Which statement is an example of how carbon moves through a food chain as part of the cycle?
Producers release carbon dioxide, and consumers take it it.
Producers take in carbon dioxide, and consumers release it.
Producers take in carbon from the soil, and they release it when they decompose.
Producers release carbon into the soil, and consumers take it in from the soil.
Which process(es) release carbon dioxide into the atmosphere?
respiration
combustion
photosynthesis
feeding
What type of organism receives carbon present in dead plants and animals?
producer
primary consumer
secondary consumer
decomposer
Which process removes carbon dioxide from the atmosphere?
deforestation
tree farms
burning fossil fuels
cellular respiration
When organisms die, what process returns their carbon back into the atmosphere?
Respiration
Decomposition
Combustion
Erosion
