NASA | Petermann Ice Island 2012

The Petermann Glacier in Greenland lost a large iceberg, Peeterman Ice Island 2012, which was tracked by NASA satellites as it floated through the Nares Strait. The iceberg, half the size of Manhattan, moved at a rate of 1 kilometer per day. Scientists have monitored the glacier's crack since 2001, noting that warmer ocean temperatures contribute to iceberg formation by destabilizing the ice. After two months at sea, the iceberg began to fragment.

What significant event occurred at the Petermann Glacier in northwest Greenland?

• The glacier completely melted.

• A massive iceberg was lost.

• A new species was discovered.

• A new glacier was formed.

How large was Peeterman Ice Island 2012 compared to Manhattan?

• Half the size of Manhattan

• The same size as Manhattan

• Twice the size of Manhattan

• One-third the size of Manhattan

Which satellites were used to track the movement of Peeterman Ice Island 2012?

• Hubble and Spitzer

• Galileo and Cassini

• Aqua and Terra

• Voyager and Pioneer

Since when have scientists been observing the crack in the Petermann Glacier?

• 2001

• 1995

• 2015

• 2010

What environmental factor contributes to the formation of icebergs?

• Air pressure

• Sunlight exposure

• Ocean temperatures

• Wind speed