Ex.4 p. 48

Why do bits of the Moreno Glacier fall into the lake?

The glacier is not retreating.

What is special about condors?

They are the world’s largest birds of prey.

When do alligators move quickly?

When there’s a meal nearby.

Why is the summer unpleasant in the Everglades?

It’s very hot, there are heavy rains and swarms of mosquitoes.

Why are the Victoria Falls called ‘the smoke that thunders’?
 Because the noise is deafening.
How deep is the Zambesi gorge?
 100 metres