The cycling of matter and energy
Answers are for parents and teachers.
1
A geological cycle takes 50000 years, a biological one 25 years. How many times do they differ?
2000
2
Write two differences between geological and biological cycles.
Geological – slow, all elements, abiotic forces; biological – fast, only biogenic elements, living organisms.
3
What is detritus and who decomposes it?
Dead organic remains; bacteria and fungi.
4
Give two examples of passage from the biological to the geological cycle.
Limestone formation; formation of peat, coal and oil.
5
Why would the water cycle stop without solar energy?
There would be no evaporation, so no clouds or precipitation.