GCSERevise
AQASpec 3.1.2Foundation & Higher~35 min

Ecosystems & Tropical Rainforests

Geography · Topic revision workspace

Topic progress0%

Read the notes, score 80% and know 75% of the cards.

Topic overview

What you need to know

Ecosystems link living and non-living components through nutrient cycles and food webs. Tropical rainforests are highly biodiverse but their nutrient stores are easily disrupted.

Exam tip

Explain rainforest characteristics as linked adaptations: climate affects soils, vegetation, nutrient cycling and biodiversity.

Revision notes

Core ideas

Secure these ideas first. Say each definition in your own words, then connect it to the topic overview.

  • Ecosystem: A community of living organisms interacting with each other and with the non-living environment.
  • Producer: An organism, usually a green plant, that makes its own food through photosynthesis.
  • Biodiversity: The variety of living organisms in an area.

Revision notes

Apply it in the exam

The exam will rarely ask for an isolated definition. Practise selecting the right idea and using it as part of a complete explanation or method.

  • Nutrient cycle: The movement and exchange of nutrients between biomass, litter and soil.
  • Deforestation: The large-scale removal of forest, often for farming, logging, mining or infrastructure.
  • Sustainable management: Using a resource at a rate and in a way that meets present needs without preventing future use.

Core knowledge

Key facts for Ecosystems & Tropical Rainforests

1

Ecosystem

A community of living organisms interacting with each other and with the non-living environment.

2

Producer

An organism, usually a green plant, that makes its own food through photosynthesis.

3

Biodiversity

The variety of living organisms in an area.

4

Nutrient cycle

The movement and exchange of nutrients between biomass, litter and soil.

5

Deforestation

The large-scale removal of forest, often for farming, logging, mining or infrastructure.

6

Sustainable management

Using a resource at a rate and in a way that meets present needs without preventing future use.

Active recall

Close the notes and answer these

  1. 1.Without looking, explain ecosystem and give one example or consequence.
  2. 2.Without looking, explain producer and give one example or consequence.
  3. 3.Without looking, explain biodiversity and give one example or consequence.
  4. 4.Without looking, explain nutrient cycle and give one example or consequence.

Content reviewed 23 July 2026 against the current linked specification.

Finished learning?

Mark the notes complete, then test what you can recall.

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