(a) Solids

(b) Slurries

(c) Liquids

(d) All of the above

(a) River

(b) Ocean

(c) Landfill

(d) None of the above

(a) Methane

(b) Nitrogen

(c) Hydrogen

(d) All of the above

(a) It is very costly

(b) It requires a lot of space

(c) It requires modern technologies

(d) It causes several environmental issues

(a) Landfill

(b) Incineration

(c) Recycling

(d) Vermicomposting

(a) Food wastes

(b) Wood pieces

(c) Plastic cans

(d) All of the above

(a) By the flow of water

(b) By the soil particles

(c) By the action of microorganisms

(d) By oxidation

(a) Plan for reuse

(b) The integrated plan

(c) Plan for recycling

(d) Plan for reducing

(a) Because it creates a lot of spaces

(b) Because it creates contamination

(c) Because paper can be used only one time

(d) Because paper is very thick and can’t cover the food containers

(a) Burning

(b) Disposal

(c) Recycling

(d) Source reduction