Daily Practice

GCSE Science

21st June 1983

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
State the relative charge of a neutron.
4
Using Resources
State one benefit of recycling metal rather than extracting new metal from its ore.
5
Using the Earth's Resources and Potable Water
Explain, in terms of particle size, how reverse osmosis separates water from dissolved salt.

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