(a) Eating the liver of Mule deer

(b) Eating the liver of Buffalo

(c) Eating the liver of Ostrich

(d)Eating the liver of Polar bear

(a) Two

(b) Three

(c) Seven

(d) Eleven

(a) Separate collection of each kind of waste

(b) Segregation of garbage at the source

(c) Community involvement

(d) All of the above

(a) Biogas

(b) Natural gas

(c) Liquified petroleum gas

(d) All of the above

(a) Wood

(b) Plastic

(c) Aluminium

(d) Organic materials

(a) It is used to make compost

(b) It lasts for a longer period of time

(c) Toxic fumes are produced when burnt

(d) All of the above

(a) Recycling

(b) Landfilling

(c) Both a and b

(d) None of the above

(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