1. State two factors that affect the rate of decay
2. What are the best conditions where decay will happen at the fastest rate?
3. Why does the pH of milk reduce when it decays?
4. True or false? Compost is made from dead plants
5. What does aerobic mean?
6. What does anaerobic mean?
7. True or false? Peat bags preserve skeletons very well
8. What are decomposers?
9. True or false? Cold temperatures will slow down the rate of decomposition
10. Biogas is made up from:
A - Oxygen and carbon dioxide
B - Propane and oxygen
C - Methane and carbon dioxide