WorksheetsCarbon Cycle
Total questions: 20
Worksheet time: 3600secs
When animals eat plants, the carbon that the plant contains is absorbed by the animals.
True
False
How do animals get carbon?
By eating plants and or other animals.
They absorb it from the atmosphere.
From the ground
They do not get carbon from anywhere.
What is CO2?
Carbon Monoxide
Carbon Trioxide
Carbon Dioxide
Oxygen
If the plant population decreased, the amount of carbon in the atmosphere would _________.
Stay the same
Increase
Decrease
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
Plants use ____________ to make their own food
Water
Sunlight
Carbon dioxide
All of these
Carbon enters the soil through dead plant or animal matter.
Decomposition
Respiration
Photosynthesis
Diffusion
Burning fossil fuels has raised the concentration of ___________ in the atmosphere.
oxygen
rain
carbon
nitrogen
Identify the two processes that assist carbon through ecosystems.
evaporation and condensation
photosynthesis and respiration
photosynthesis and evaporation
condensation and respiration
