World’s largest iceberg may soon break up

Iceberg A68, once the world's largest iceberg, has lost a 175 square kilometer chunk, now called Iceberg A68C. Originally calved from Antarctica's Larsen Ice Shelf in 2017, it was nearly 6000 square kilometers in size. Recent satellite images show it has reduced to around 5000 square kilometers. The iceberg is remarkably thin, being 160 kilometers long but only a few hundred meters thick. After losing a small piece named A68B, it drifted past the Antarctic Peninsula. Now, Southern Ocean currents are pushing it past the South Orkney Islands into warmer waters, where it is expected to fragment further, with some pieces potentially lasting for years.

What is the approximate current size of Iceberg A68 compared to Greater London?

• Twice the size

• Three times the size

• Five times the size

• Four times the size

When did Iceberg A68 break off from the Larsen Ice Shelf?

• July 2016

• July 2019

• July 2017

• July 2018

What was the name of the smaller piece that broke off from Iceberg A68 shortly after it calved?

• Iceberg A68A

• Iceberg A68B

• Iceberg A68D

• Iceberg A68C

Which ocean currents are currently influencing the movement of Iceberg A68?

• Indian Ocean currents

• Atlantic Ocean currents

• Pacific Ocean currents

• Southern Ocean currents

As Iceberg A68 drifts into warmer waters, what is expected to happen?

• It will melt completely within a year

• It will fragment into smaller ice blocks

• It will remain intact indefinitely

• It will refreeze and grow larger