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WorksheetsThe Carbon Cycle
Total questions: 14
Worksheet time: 8mins
Which of these are anthropogenic (man-made) sources of atmospheric carbon?
industry emissions
volcanic eruptions
burning of fossil fuels
deforestation
Which of these are natural sources of atmospheric carbon?
decomposition
volcanic eruptions
deforestation
wildfires
True or false? Carbon is an essential element of life.
True
False
Which of these contain carbon atoms?
gasoline
coal
oceans
gold
the atmosphere
Which of these are sources of atmospheric carbon?
cellular respiration
photosynthesis
respiration
transpiration
evaporation
How many protons would an atom of carbon have in its nucleus?
6
2
3
5
How many electrons would an atom of carbon have on the outside of its nucleus?
6
2
3
5
How many neutrons would an atom of carbon have in its nucleus?
6
2
3
5
An isotope is a version of an element that has the same number of protons but is heavier or lighter. This version of carbon, Carbon-14, has a mass of 14 AMU. How many neutrons would an atom of carbon have in its nucleus?
6
7
8
4
Gases containing carbon move between
the ocean’s surface and the atmosphere
through a process called...
transpiration
osmosis
diffusion
saturation
How many atoms of carbon are found in the molecule of carbon dioxide?
1
2
3
0
The formula for which chemical reaction is shown here.
cellular respiration
photosynthesis
combustion
evaporation
The Carbon Cycle is evidence of which law?
conservation of mass
conservation of energy
conservation of matter
conservation of atoms
Carbon is found in Group 14 of the periodic table. How many valence electrons would an atom of carbon have?
2
4
6
8
