Daily Practice

GCSE Science

12th January 1993

5 questions · GCSE · 584 questions in this band

1
Ecosystems, Adaptation and Feeding Relationships
State one abiotic factor that can affect the population of fish living in a pond.
2
Biodiversity, Cycles and Human Impact
State one way in which high biodiversity benefits an ecosystem.
3
Chemistry Required Practicals and Data Analysis
Why is the burette rinsed with the solution it is going to contain rather than with water?
4
Atomic Structure and the Periodic Table
A sample contains 90% of an isotope with mass number 10 and 10% of an isotope with mass number 11. Calculate the relative atomic mass, to 1 decimal place.
5
Using Resources
Explain why potable water is not the same as pure water.

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