1) How old is the Earth estimated to be? a) 4000 years b) 4.6 million years c) 4,600,000 years d) We don't have an estimate e) 4,600,000,000 years f) 4,600,000,000,000 years 2) What do scientists believe formed the early atmosphere? a) Dinosaurs b) Plants c) Cavemen d) Volcanoes e) Comets f) Rain 3) Which gas was not present in the Earth's early atmosphere? a) Carbon dioxide b) Oxygen c) Nitrogen d) Water vapour e) Methane f) Ammonia 4) Where did most of the carbon dioxide go from the Earth's early atmosphere? a) It was used by plants b) It dissolved in the sea and formed limestone c) Dinosaurs breathed it in d) In the skeletons of dinosaurs 5) 2.7 billion years ago oxygen started to be produced.  Where did it come from? a) Dinosaurs b) Cavemen c) Plants and algae d) Volcanoes e) Respiration f) Sediments 6) What is approximately the correct proportions of the current atmosphere? a) 80% Oxygen 20% Carbon Dioxide b) 20% Oxygen 80% Carbon Dioxide c) 80% Nitrogen 20% Oxygen d) 80% Oxygen 20% Nitrogen e) 80% Nitrogen 20% Carbon Dioxide 7) Which of these is not a greenhouse gas? a) Ammonia b) Water vapour c) Carbon dioxide d) methane 8) Which of these does not increase the amount of greenhouse gasses in the atmosphere? a) Deforestation b) Burning fossil fuels c) More people eating meat d) Adding to landfill sites e) Converting to woodburning stoves 9) The measure of the amount of carbon dioxide and other greenhouse gases released over the full life cycle of something. a) The service survey b) The carbon footprint c) The nitrogen factor d) The carbon tax e) The greenhouse image 10) Which of these does not cause acid rain? a) Methane b) Carbon dioxide c) Sulfur dioxide d) Nitrogen dioxide 11) Which of these problems is not caused by particulates? a) Respiratory problems b) Lung damage c) Global dimming d) Acid rain e) Cancer 12) Which of these is not a finite resource? a) Timber b) Coal c) Oil d) Nuclear fuels e) Minerals f) Metal ores

C2 Chemistry of the Atmosphere

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