The waste which takes 3 to 4 weeks to be decomposed in landfill is

The waste which takes 80 to 100 years to be decomposed in landfill is

The chemical substance used to destroy the weeds in crops is called

Besides the forest fires as natural source of pollution, the other major sources of pollution are

The reduce, reuse and recycle principle by which wastes can be reduced is classified as

The layer of atmosphere that absorbs ultraviolet rays from Sun is called

The air condition equipment, leaking refrigerators, spray cans and burning of plastic foams release

The natural source of pollution is

The harmful substance released by power plants and cars is

The kind of land pollution in which salt content rises and land becomes unsuitable for farming is called

The Kyoto Protocol agreement signed by participating countries and became legally binding in

The fuel oils and coal are classified as

During the process of photosynthesis, the element that plants give off is

The 'global warming' leads to