Daily Practice · GCSE Science

Daily Practice - GCSE Science

1st May 1998

5 questions · GCSE · 584 questions in this band

1
Ecology
Define community, in ecological terms.
2
Ecosystems, Adaptation and Feeding Relationships
Explain why a pyramid of biomass is never wider at the top than at the bottom.
3
Biodiversity, Cycles and Human Impact
Name the biological process that removes carbon dioxide from the atmosphere and converts it into carbon compounds in a plant.
4
Chemistry Required Practicals and Data Analysis
A gas syringe collects 48 cubic centimetres of gas in 40 seconds. Calculate the mean rate.
5
Atomic Structure and the Periodic Table
Explain, in terms of electrons, why reactivity decreases going down Group 7.

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