Higher November 2019 Paper 1 Q3
3. In 2018, the total volume of ice in the Greenland ice sheet was \(2{\cdot}99 \times 10^{6}\) km3.
The total surface area of the ice sheet was \(1{\cdot}799 \times 10^{6}\) km2.
Assuming that the depth of the ice was constant for the whole ice sheet, estimate the depth of the ice in 2018.
You must state the units of your answer. [3]
| Scheme | Marks | Comments |
|---|---|---|
| \((3 \times 10^{6}) \div (2 \times 10^{6})\) oe | M1 | Allow for \((3 \times 10^{6}) \div (1.8 \times 10^{6})\) |
| 1.5 | A1 | FT ‘their estimate’ If M0 then allow SC1 for sight of \((2.99 \times 10^{6}) \div (1.799 \times 10^{6})\) |
| km | B1 | Appropriate unit for their answer e.g. 1500 m gets M1 A1 B1; allow for ‘km’ even if no calculation attempted |
| (3) |