To be read allowed by the supervisor before the test begins. At the end of the examination hand in your notes to question 1 separately from your answer paper Mathematical tables and squared paper are provided

Its perimeter in inches, correct to the nearest half inch.
The volume of water pumped in each time the tank is refilled, giving your answer correct to the nearest litre Diamond and graphite are two forms of carbon. How would you account for these relationships?

State how they differ from one another in physical properties and crystalline form.


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