1) What is the soil material called humus made of? a) Weathered rock particles b) Decaying remains of plants and animals c) Living plants and animals d) Chickpeas 2) Which property of soil can farmers and gardeners test with universal indicator? a) pH b) Particle size c) Water content d) Colour 3) How does soil pH change when lime is added to soil that is too acidic? a) pH decrease b) pH increase c) pH does not change d) pH increase and then decrease 4) Which factor does not effect soil pH? a) the type of rock b) the type of plants that grow in the soil c) the amount of rain d) the amount of indicator 5) Which enviromental factor speeds up the effects of chemical weathering? a) plant roots b) acid rain c) water d) temperature 6) What is the normal pH of rain water? a) 14.2 b) 7.1 c) 5.6 d) 1.3 7) Which of these gases are the pollutants which cause acid rain? a) nitrogen oxides and sulphur dioxide b) carbon dioxide and methane c) nitrogen oxides and carbon dioxide d) carbon dioxide and sulphur dioxide 8) Which of these measures does not reduce acid rain? a) burning more fossil fuels b) removing sulphur dioxide from the gases released by power stations. c) fitting cars with a catalytic converter d) burning less fossil fuels 9) What is trapped in the Earth's atmosphere to cause the greenhouse effect? a) acid rain b) light c) heat d) sound 10) Which of these gases are greenhouse gases? a) nitrogen oxides and sulphur dioxide b) carbon dioxide and nitrogen c) carbon dioxide and methane d) sulphur dioxide and methane

9G Environmental Chemistry Quiz

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