Definitions

Subsidy

A subsidy is money that is paid by a government or other authority in order to help an industry or business, or to pay for a public service.

Smog

1. Fog that has become mixed and polluted with smoke.
2. A form of air pollution produced by the photochemical reaction of sunlight with hydrocarbons and nitrogen oxides that have been released into the atmosphere, especially by automotive emissions.

Biodegrable