Test Index

WAEC Geography 2017 Papers

Question : 20

Total: 50

Solution:

Concept:

As altitude increases, temperature decreases at an average lapse rate of about

6.5^\circ\mathrm{C}

per

1000

metres.

Explanation:

Height difference

= 6000

= 6 \times 1000

Total temperature decrease

= 6 \times 6.5^\circ\mathrm{C} = 39^\circ\mathrm{C}

Temperature at the top

= 20^\circ\mathrm{C} - 39^\circ\mathrm{C} = -19^\circ\mathrm{C}

Answer:

The approximate temperature at the top is

-19.0^\circ\mathrm{C}

. Hence, the correct option is A.

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