Examlex
The Do ... Loop statement can be used to code both a pretest loop and a posttest loop.
Montreal Protocol
An international treaty designed to protect the ozone layer by phasing out the production of numerous substances responsible for ozone depletion.
Ozone-Destroying Chemicals
Substances, such as chlorofluorocarbons (CFCs), that break down the ozone layer in the stratosphere, leading to ozone depletion.
Ground-Level Ozone
A harmful air pollutant formed by the reaction of sunlight with pollutants such as nitrogen oxides and volatile organic compounds, contributing to smog and adverse health effects.
Fossil Fuels
Natural fuels formed from the decayed remains of plants and animals over millions of years, including coal, oil, and natural gas.
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