Atmospheric Pollutants Crossword Puzzle

QUESTIONS LIST:

• hydrogen: hydrocarbons are made up of carbon and _ .
• sulfur: as well as hydrocarbons, some fuels contain this element.
• combustion: the reaction that happens when a fuel is burned. can be complete or incomplete.
• water: a product made when hydrocarbons in fossil fuels are burned and react with lots of oxygen in the air (complete combustion)
• carbon dioxide: a gas made when hydrocarbons in fossil fuels are burned and react with lots of oxygen in the air (complete combustion)
• incomplete: the type of combustion that happens when there is not enough oxygen.
• carbon monoxide: a toxic gas that is produced when hydrocarbons undergo incomplete combustion (burn in not enough oxygen)
• greenhouse: a type of gas. water, carbon dioxide and methane are all examples.
• rise: climate change can cause sea levels to do this.
• particulates: tiny particles (soot) produced when fuels undergo incomplete combustion.
• colourless: what carbon monoxide gas looks like (and why it is so difficult to detect)
• dimming: particulates can causes global _ .
• breathing: particulates can causes problems with this important human process.
• climate change: greenhouse gases like water vapour and carbon dioxide cause this.
• dioxide: when sulfur in fuels reacts with oxygen in the air, sulfur _ is made.
• air: where the oxygen in sulfur dioxide comes from.
• fuel: where the sulfur in sulfur dioxide comes from.
• acid rain: a type of weather caused by sulfur dioxide.
• buildings: these can be damaged by acid rain.
• nitrogen: oxides of _ are formed when oxygen and nitrogen in the air react at high temperatures in car engines.
• fish: a type of animal that can be harmed by acid rain falling into lakes and rivers.