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WorksheetsWater and Carbon Cycles EOC Review
Total questions: 24
Worksheet time: 23mins
When humans burn fossil fuels, most of the carbon quickly enters the ________________ as carbon dioxide.
Water
Atmosphere
Sun
Soil
Which one of these DOES NOT release CO2 back into the atmosphere?
cooking with gas
planting trees
burning wood
riding in a bus
What DOES NOT produce carbon dioxide?
How do living organisms return carbon back into the atmosphere in the carbon cycle?
respiration and photosynthesis
decomposition and respiration
In the carbon cycle, producers (plants) take in the gas __
Which of the following removes carbon from the atmosphere?
Combustion
Respiration
Photosynthesis
Death
Organisms (dead plant and animal remains) that do not decompose can be buried deep in the ground and over time can become _________?
water
nutrients
air
fossil fuels
Which is a true statement?
Humans depend on oxygen, plants depend on carbon dioxide
Plants produce carbon dioxide
Humans depend on carbon dioxide, plants depend on oxygen
Humans don't depend on plants for the air they need
The ocean is considered a carbon sink because it takes in (absorbs) more carbon than it releases back into the atmosphere.
True
False
How do animals get carbon (carbon/organic compounds)?
By eating plants and other animals in the food chain
They take it up from the ground
They absorb it from the atmosphere
They do not get carbon from anywhere
Which of the following are fossil fuels?
coal, water and oil
coal, water and natural gas
oxygen, coal and oil
coal, oil and natural gas
When carbon enters the soil as dead plant or animal material this process is called
photosynthesis
respiration
decomposition
combustion
The 2 main processes that fuel the carbon cycle are
decomposition and respiration
combustion and photosynthesis
respiration and photosynthesis
decomposition and combustion
Carbon can be found in
the soil
the atmosphere
the ocean
living and dead organisms
all of the above
What process occurs when coal (a fossil fuel) is burned and used for energy and releases CO2 into the atmosphere.
decomposition
combustion
respiration
photosynthesis
The average temperature of the Earth has increased approximately 1 degree Celsius in the last century. Which reason best explains this increase in temperature?
lower levels of ozone in the atmosphere
higher levels of carbon dioxide and other greenhouse gases in the atmosphere
lower levels of nitrogen in the atmosphere
higher levels of oxygen in the atmosphere
When humans EXHALE, we release __________________.
oxygen gas
nitrogen gas
carbon dioxide
water
Combustion is another word for _____________
respiration
photosynthesis
burning
decomposition
The circulation of the element Carbon among Earth's atmosphere, land, oceans and organisms is called _____________
The Carbon Cycle
The Carbon Dioxide Cycle
The Oxygen Cycle
The Water Cycle
Through the process of photosynthesis, plants pull CO2 from the air to make food for themselves.
True
False
How do plants affect the air that animals and people breathe?
Plants use oxygen from the air to make their own food
Plants release pollution into the air
Plants take in carbon dioxide and release oxygen
Plants take in oxygen and release carbon dioxide
Respiration is the process by which animals take in ________ and release __________.
photosynthesis, air
carbon, oxygen
oxygen, oxygen
oxygen, carbon dioxide
