AQA GCSE Chemistry 4.9 Chemistry of the atmosphere overview quiz quiz

80% nitrogen and 20% oxygen

80% oxygen and 20% nitrogen

50% carbon dioxide and 50% oxygen

80% carbon dioxide and 20% nitrogen

Mostly oxygen gas

Carbon dioxide

Mainly nitrogen gas

Hydrogen and helium

Volcanic activity releasing gases

The burning of fossil fuels in factories

Photosynthesis by algae and plants

The gradual formation of the deep oceans

Carbon dioxide being released by erupting volcanoes across the planet

Burning huge quantities of coal, oil and other fossil fuels in industry

Deforestation, as forests are cleared and burned to make room for farms

Carbon dioxide dissolving in the oceans and forming carbonate rocks

They absorb heat radiated by the Earth and re-emit some back towards it

They block incoming sunlight from ever reaching the surface of the Earth

They steadily cool the upper atmosphere and trap that coldness near the ground

They produce heat directly by constantly reacting with the oxygen in the air

Driving petrol and diesel cars on the roads

Cattle farming and landfill

Using solar panels to generate electricity

Recycling glass bottles and jars at home

Carbon dioxide gas

Sulfur dioxide gas

Carbon monoxide

Nitrogen from the air

From nitrogen in the air

From incomplete combustion of carbon

From the oceans

From sulfur impurities in the fuel

From nitrogen and oxygen in the air reacting at high temperatures

From the sulfur impurities that are present in the petrol fuel

From the incomplete combustion of the fuel inside the engine

From the carbon contained within the fuel as it burns in the engine

Carbon dioxide and methane greenhouse gases

Sulfur dioxide and oxides of nitrogen

Carbon monoxide and soot particulates

Oxygen and nitrogen from the clean air

The total mass of carbon contained within the finished product

The total amount of carbon dioxide that the product absorbs

The total greenhouse gases produced over its whole life cycle

The number of carbon atoms found in one molecule of it

Acid rain falling on lakes and buildings only

An increase in the oxygen levels of the air

Cooling of the deep oceans around the world

Respiratory problems and global dimming