Answer:
Adding moisture to the waste in a suitably designed and operated landfill should increase its degradation, leading to less risk and a move towards sustainability. ... Proper aeration, moisture addition and gas extraction are needed to control the environment required for aerobic processes to thrive with optimum efficiency.
Explanation:
10. mouth
11. salivary glands
12. esophagus
13. stomach
14. small intestine
15. large intestine
A leech is an example of a parasite
