Environment a.The world health organization believes that, on average, 4.6 million deaths per year are caused by air polution, and 5.1 million by water pollution. With the help of examples, describe some of the links between pollution and mortality. [10] b. Why is it so difficult to solve the problem of air pollution? [15]

Environment a.The world health organization believes that, on average, 4.6 million deaths per year are caused by air pollution, and 5.1 million by water pollution. With the help of examples, describe some of the links between pollution and mortality. [10] b. Why is it so difficult to solve the problem of air pollution? [15]

Weathering a.(i) Define the terms hydration and solution as they apply to weathering [4] (ii)Explain the process of carbonation[3] b. With the aid of diagrams, show how the processes of flows and slides can affect slopes [8] c. How can a Peltier diagram help in understanding the relationship between weathering and climate?[10]

Weathering a.(i) Define the terms hydration and solution as they apply to weathering [4] (ii)Explain the process of carbonation[3] b. With the aid of diagrams, show how the processes of flows and slides can affect slopes [8] c. How can a Peltier diagram help in understanding the relationship between weathering and climate?[10]