# Explain how two different human activities increase the levels of greenhouse gases in the atmosphere. In your answer, name the greenhouse gas produced by each activity.

> AQA GCSE Chemistry (8462) — 4.9.3 Common atmospheric pollutants and their sources · Explain · 4 marks

## Mark scheme (4 marks)

1. Names a valid human activity that produces a greenhouse gas (e.g. driving/burning fossil fuels for electricity/raising livestock/decay of organic waste in landfill sites)
2. Correctly names the greenhouse gas linked to that first activity (CO₂ for driving/electricity; methane/CH₄ for livestock/landfill)
3. Names a second valid human activity that produces a different greenhouse gas (must be a distinct activity from the first)
4. Correctly names the greenhouse gas linked to that second activity, and this must be a different gas from the one given for the first activity

## Key terms

- [greenhouse gases](https://www.gradenine.co.uk/glossary/greenhouse-gases)
- [human activities](https://www.gradenine.co.uk/glossary/human-activities)
- [atmosphere](https://www.gradenine.co.uk/glossary/atmosphere)

## Related

- [Revision notes for AQA GCSE Chemistry (8462)](https://www.gradenine.co.uk/learn)
- [How to answer "Explain" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
- [Practice this with AI marking (free)](https://www.gradenine.co.uk/start)

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Source: [GradeNine](https://www.gradenine.co.uk/q/explain-how-two-different-human-activities-3a640c92) · Published by Druglandscape Ltd.