Welcome to the Quiz!
This quiz contains 10 questions from a mix of 1 subtopics.
What is decay?
The production of glucose from carbon dioxide and water
The formation of urea by the liver
The breakdown of organic matter by the action of decomposers
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Which of the following are detritus feeders?
Bacteria
Worms
Woodlice
Fungi
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What effect would lowering the temperature have on the rate of decay of an apple?
Increase the rate of decay
Decrease the rate of decay
No effect on the rate of decay
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Oxygen is important for decomposition.
What process do bacteria need oxygen for?
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Why could the rate of decomposition fall if soil becomes waterlogged?
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What is compost made of?
Manure
Mud
Dead plants
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What does anaerobic mean?
With oxygen
Without air
Without oxygen
With air
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Do biogas generators carry out aerobic or anaerobic decay?
Aerobic
Anaerobic
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What is the main gas in biogas?
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Once the gas has been removed from a biogas generator, a sludgy material is left over.
What is this sludgy material used for and why?
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