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WorksheetsCarbon Cycle and Food Chain
Total questions: 17
Worksheet time: 9mins
State the two main Fluxes in the Carbon Cycle.
Hydrosphere and Biosphere
Atmosphere and Geosphere
Photosynthesis and Hydrosphere
Respiration and Photosynthesis
Why is Photosynthesis useful in the Carbon Cycle?
It produces carbon dioxide back to the atmosphere
It produces glucose to the biosphere
It gains Carbon Dioxide and changes it to Oxygen
None of the Above
State the chemical equation for Photosynthesis
C6H12O6 + 6H20--> 6H20+ C6H12O6
6CO2 + 6O2--> C6H12O6 + 6H20
6H20 + 6CO2--> C6H12O6 + 6O2
None of the Above
How does CO2 enter the plant that is needed for Photosynthesis
It enters it by Respiration
It enters it from the roots through the process of Xylem
It enters it from the leaf into the stomato
It does not enter it as it is not needed in Photosynthesis
What does Respiration do?
It takes in CO2 and H20 from the atmosphere to produce Glucose
It produces CO2 and H2O from Glucose only
It produces CO2 and H20 from Glucose and Oxygen
None of the above
State the process when dead decayed organisms turned into fossil fuel
Erosion
Condensation
Evaporation
Fossilization
How does CO2 enters the ocean from the soil? (Lithosphere to Hydrosphere)
By Fossilization
By Erosion
By Respiration
It does not enter the ocean from the soil
What decays waste products from living things in the soil? And give an Example?
Scavengers such as Vultures
Decomposers such as Fungi
None of the above
What does Fossil Fuel contain?
Oil, Water and Fire
Fire, Grass and Soil
Oil, Gas and Coal
What happens to the fossil fuel afterwards?
It gets back to the hydrosphere
It gets consumed by the factories and/or deforestration
It gets back to the Lithosphere
It stays the same
Does Carbon leave the Biosphere naturally?
Yes by Erosion
No because it gets photosynthesized
No, as it is a cycle
What is the Food Chain?
It is a diagram that represent what people eat
It is a diagram demonstrating how each organism get Carbon by eating plants or animals in an ecosystem
It is a diagram that explains the Pythagorean Theorem
None of the Above
From where does the producer gets it energy from?
From the Consumer
From the moon
From the Sun
From Mars
Let X be the Producer and Y be the primary and Z be the the secondary consumer. If Y is gone, what will happen to the food chain?
X will be more and Z will be more
X will be less and Z will be less
X will be more, but Z will be less
None of the above
What is a food pyramid and what does it demonstrates?
It is a pyramid that shows how CO2 changes
It is a pyramid that shows the different tropic levels of animals only
It is a pyramid that shows the amount of energy decreasment of each tropic level by 10%
None of the above
In a food pyramid, if the produces have 10,000 J how much will the secondary consumer have?
1,000 J
10 J
100 J
0.1 J
What happens when the population increased and doubled to 14 billion?
Nothing Happens
It will affect the food chain only
It will increase the amount of CO2 yearly only
It will affect the food chain, and increase the amount of CO2 yearly.
