Available Answers

1. 1.

   Give two reasons why the Earth is described as a ‘unique' planet.

2. 2.

   The length of the line of latitudes, decreases with distance away from the Equator. Give reasons.

3. 3.

   On crossing the International Date Line, eastwards, a day is grained. Give reasons.

4. 4.

   State two differences between cold currents and warm currents.

5. 5.

   Explain why the upper mantle is referred to as 'low' velocity zone.

6. 6.

   State two differences between physical and chemical weathering.