Exam (elaborations)
OCR 2023 GCSE CHEMISTRY B TWENTY FIRST CENTURY SCIENCE J258/01: BREADTH IN CHEMISTRY (FOUNDATION TIER) QUESTION PAPER & MARK SCHEME (MERGED)
2 © OCR 2023 1 The increase in global population means there is a greater need for drinking water. (a) What is the correct term for drinking water? Tick () one box. Ground water Potable water Sea water Waste water [1] (b) One source of drinking water is salt water. Describe a process t...
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