Water vapour rises high into the atmosphere, where it cools. What happens to the water vapour next?
It evaporates from the surface of the sea to form water vapour
It condenses into tiny droplets of liquid water, forming clouds
It is transpired through the stomata in the leaves of green plants
It drains down through the soil and runs into the rivers and sea
83 exam-style questions on AQA GCSE Biology 7.2 Organisation of an ecosystem, covering 7.2.1 Levels of organisation, 7.2.2 How materials are cycled, 7.2.3 Decomposition, and 7.2.4 Impact of environmental change (HT only). Each one has a worked solution and a mark scheme showing where the marks go.