Task 1: The diagram below shows the production of electricity using a system called Ocean Thermal Energy Conversion (OTEC).
Write a report for a university lecturer describing the information below.
Write at least 150 words.
Task 2: It is important for public money to be spent on promoting healthy lifestyle to prevent illness rather than spending money treating people who are ill. To what extent do you agree or disagree?
Write at least 250 words.