23. Short answer questions XV

 

a. This process involves decomposing waste materials such as cow dung, animal refuse, vegetable waste, weeds and domestic waste in a pit using microbes known as __________.

 

b. __________ is a nutrient-rich organic material that is made through the process of composting.

 

c. An efficient method of decomposition that utilizes various species of earthworms and worms to break down waste materials, such as vegetable waste, is known as ___________.