B1 - Decay Flashcards
1
Q
Which living things cause decay?
A
Microorganisms, bacteria, fungi, maggots, worms.
2
Q
Explain why a compost heap contains soil as well as dead plant material.
A
Soil contains the microbes needed to decay the dead plant material.
3
Q
Explain why a compost heap contains holes in the sides.
A
To let in oxygen for aerobic respiration of microorganisms; to let excess heat escape.
4
Q
What are the four things needed for decay?
A
Warmth, moisture, oxygen, microorganisms
5
Q
Why do gardeners put compost onto soil around plants?
A
Compost contains minerals.
6
Q
Why are fungi called decomposers?
A
They break down dead material.
