Exploring the Twelve Apostles: Natural Wonders of Australia

The video discusses how Antarctic waves continuously erode Australia's southern coastline, leading to the formation of limestone stacks known as the Twelve Apostles. These formations are created as waves cut into the headlands, leaving behind harder rocks. The video also explains how the different layers of limestone were formed from sediment on the floor of an ancient sea, which the ocean is now reclaiming.

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