Landforms - the Twelve Apostles, Melbourne, Australi

What natural force is causing Australia's southern coastline to retreat?

• Wind erosion

• Human activities

• River flow

• Wave action from the Antarctic

What are the Twelve Apostles?

• Mountain peaks

• Limestone stacks west of Melbourne

• Ancient ruins

• A group of islands

How are new limestone stacks formed?

• Sand accumulation

• Ocean waves eroding the headlands

• Glacial movements

• Volcanic activity

What was the origin of the limestone layers?

• Sediment on the floor of an ancient sea

• Deposits from a river

• Ash from ancient volcanoes

• Coral reef build-up

What is the ocean's role in the cycle of land formation and erosion?

• Helps in both creating and reclaiming land

• Has no significant impact on land formation

• Creates land through volcanic activity

• Only erodes land, never creates