Tuesday, October 1, 2019

Carbon dioxide Essay

Do not write outside the box around each page or on blank pages. ? Do all rough work in this book. Cross through any work you do not want to be marked. Information The marks for questions are shown in brackets. ? The maximum mark for this paper is 45. ? You are expected to use a calculator where appropriate. ? You are reminded of the need for good English and clear presentation in your answers. ? Advice ? In all calculations, show clearly how you work out your answer. (Jan12CHy1H01) K76507 6/6/6 CHY1H 2 Answer all questions in the spaces provided. Do not write outside the box 1 Petroleum diesel is a fuel made from crude oil. Biodiesel is a fuel made from vegetable oils. To make biodiesel, large areas of land are needed to grow crops from which the vegetable oils are extracted. Large areas of forest are cleared by burning the trees to provide more land for growing these crops. Leave as forest Forest Produce food Burn the trees Grow crops Produce biodiesel 1 (a) 1 (a) (i) Use this information and your knowledge and understanding to answer these questions. Carbon neutral means that there is no increase in the amount of carbon dioxide in the atmosphere.

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