Question

Write four numbers ahead of the following numbers by counting in thousands.
a) 30,817
b) 72,354 c) 87,421
d) 41,201​

Answer 1

Answer:

The diagram shows water waves moving towards a sea wall.

A

sea wall

B

waves

shallow water

i What will happen to the water waves when they

a. strike the sea wall at A?

b. strike the sea wall at B?

ii. a. What will happen to the water waves when they pass over shallow water at C?

b. Explain why this happens.

ili. a. Describe what would happen to the waves if a narrow gap appeared in the harbour

wall.

b. Explain why this happens