WorksheetsStogs KS3 Carbon Cycle
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
What is the name of the process that removes carbon dioxide from the air?
a)
Respiration
b)
Transpiration
c)
Photosynthesis
d)
Combustion
2.
Select the organisms that remove carbon dioxide from the air.
a)
Green plants
b)
Algae
c)
Badgers
d)
Insects
3.
In what form is carbon released into the air during respiration?
a)
Solid carbon
b)
Particulates
c)
Carbon monoxide
d)
Carbon dioxide
4.
What is carbon made into in respiration?
a)
Carbon
b)
Glucose
c)
Carbon monoxide
d)
Carbon dioxide
5.
How does carbon get from the air into your body?
a)
Transpiration
b)
Photosynthesis
c)
Respiration
d)
Digestion
6.
Which of these does not add to the amount of carbon compounds in the atmosphere?
a)
Photosynthesis
b)
Decaying animal remains
c)
Burning fossil fuels
d)
Respiring animals
7.
if there is a fire in a forest, there will be less _ in the environment?
a)
nitrogen
b)
oxygen
8.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
9.
How is the burning of fossil fuels related to global warming?
a)
Magic
b)
Fuels are hot
c)
Greenhouse effect
d)
Photosynthesis
10.
Which of the following is an example of a decomposer?
a)
Owl
b)
Fish
c)
Tree
d)
Mushroom
11.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
12.
Which process converts carbon in the form of sugar into carbon dioxide gas?
a)
Bioremediation
b)
Photosynthesis
c)
Respiration
d)
Transpiration
13.
Combustion is another word for __________.
a)
Transportation
b)
Respiration
c)
Fossil Fuels
d)
Burning
14.
The diagram shows the flow of organic molecules through an ecosystem. What two processes are identified by the labels X and Y?
a)
X : Respiration
Y : Predation
Y : Predation
b)
X : Adaptation
Y : Decomposition
Y : Decomposition
c)
X : Fermentation
Y : Nitrogen Fixation
Y : Nitrogen Fixation
d)
X : Decomposition
Y : Respiration
Y : Respiration
15.
Which one of these does not add CO2 to the atmosphere?
a)
cooking with gas
b)
planting trees
c)
burning wood
d)
riding in a bus
100 %
