IELTS-A 14 Listening test 1 section 4

More energy required because of growth in population and

Advantage: waves provide a source of renewable energy

waves can move in any

movement of sand, etc. on the of the ocean may be affected

Tides are more than waves

will be created in a at Swansea

stored water is released through , driving the turbines in the reverse direction

no is required to make it work

likely to create a number of

may harm fish and birds, e.g. by affecting and building up silt