Daily Practice · GCSE Science

Daily Practice - GCSE Science

24th November 1997

5 questions · GCSE · 584 questions in this band

1
Chromatography and Instrumental Analysis
State two advantages of instrumental methods of analysis, such as GC-MS, compared with manual chemical tests.
2
Chemistry of the Atmosphere
Explain, in terms of infrared radiation, how greenhouse gases keep the Earth warm.
3
The Atmosphere: Evolution and Greenhouse Gases
Explain, in one sentence, why the oceans were able to form only after the early Earth had cooled.
4
Climate Change and Atmospheric Pollutants
Give one piece of evidence used to link human activity to recent climate change.
5
Physics Equations: Recall, Rearrangement and Application
Give the equation for wave speed and its units.

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