Daily Practice · GCSE Science

Daily Practice - GCSE Science

9th March 1999

5 questions · GCSE · 584 questions in this band

1
Biodiversity, Cycles and Human Impact
Explain why large-scale deforestation increases the concentration of carbon dioxide in the atmosphere.
2
Chemistry Required Practicals and Data Analysis
In the rate experiment where a cross disappears, why is the result subjective?
3
Atomic Structure and the Periodic Table
Write the electronic structure of an atom with 12 electrons.
4
Using Resources
State the two main steps used to produce potable water from a fresh water source.
5
Using the Earth's Resources and Potable Water
Give one reason distillation of seawater requires a large energy input.

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