Question

fiil in the blanks
i) Fly Ash from industries can be utilised for.....
ii) Dry and wet........are used for dust separation for air.
iii)Tertiary treatment in an effluent treatment plant involves.....process.
iv)Compost can be prepared from....
v)Scrap metal is a.....material while wood is....process material.​

Answer 1

Answer:

for iv ans is by composting or vermicomposting