# Key concepts

> These are the words you need for environmental sustainability. Two pairs are easy to mix up: environmental sustainability and sustainable development, and conservation and preservation. The…

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## Full notes

This is a preview of the Key concepts notes for Grade 12 Economics. Create a free Hlayiso account to read the full notes, practise every question and track your progress.

## More in Environmental sustainability

- [The state of the environment](https://www.hlayiso.com/grade-12/economics/notes/environmental-sustainability/the-state-of-the-environment) — Next section
- [All Environmental sustainability sections](https://www.hlayiso.com/grade-12/economics/notes/environmental-sustainability)

## Frequently asked questions

### What will I learn in "Key concepts"?

This section covers Key concepts as part of Environmental sustainability in Grade 12 Economics. You'll find clear explanations, worked examples, and key definitions aligned to the CAPS curriculum.

### Is this section aligned with the CAPS curriculum?

Yes. All notes on Hlayiso, including "Key concepts", are written against the official CAPS curriculum and ATP for Grade 12 Economics.

### What should I study after "Key concepts"?

Continue with the next section in Environmental sustainability, or test your understanding with the interactive quiz linked to this section.

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