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Daily Practice

GCSE Science

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17th February 1990

5 questions · GCSE · 584 questions in this band

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  1. 1
    Chemistry of the Atmosphere

    State the approximate percentage of nitrogen in today's atmosphere.

  2. 2
    The Atmosphere: Evolution and Greenhouse Gases

    State two long-term stores of carbon that removed carbon dioxide from the early atmosphere.

  3. 3
    Climate Change and Atmospheric Pollutants

    Explain why burning a fuel can produce nitrogen oxides even if the fuel itself contains no nitrogen.

  4. 4
    Physics Equations: Recall, Rearrangement and Application

    A device transfers 4500 J in 90 s. Calculate its power.

  5. 5
    Physics Required Practicals and Uncertainties

    Give one reason for taking the gradient from the line of best fit rather than from two data points.

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