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Antarctica


Antarctica is located around the South Pole and it is the southernmost continent. It is surrounded by the Southern Ocean. Southern Ocean is surrounded by the Pacific, Atlantic, and Indian Oceans. Antarctica covers more than fourteen million square km. It is the fifth-largest continent. Its coastline that is mostly made of ice formations, is approximately 17,968 kilometers long.

The Antarctic ice sheet covers about 98% of Antarctica. This ice sheet is very think. The average thickness this ice sheet is about 1.6 kilometers. Antarctica continent has approximately ninety percent of the world's ice and approximately seventy percent of the world's fresh water. Antarctica does not get very much snow or rain. Most of its interior land gets about 20 centimeters of snow per year.

Western Antarctica is covered by the West Antarctic Ice Sheet. The sheet has been of recent concern because of the real, if small, possibility of its collapse. If the sheet were to break down, ocean levels would rise by several meters in a relatively geologically short period of time, perhaps a matter of centuries. Several Antarctic ice streams, which account for about 10% of the ice sheet, flow to one of the many Antarctic ice shelves.

The highest peak in Antarctica is 4,892 meters tall. It is called Vinson Massif. This peak is located in the Ellsworth Mountains. There are many volcanoes in Antarctica but only the Mount Erebus is an active volcano. The last giant volcanic eruption seen on the Antarctic was the eruption of volcano called Deception Island. It erupted in 1970. There was an underwater volcano was also discovered in the Antarctic Peninsula.

Surface of the Antarctica is always frozen, however there are approximately seventy lakes that lie thousands of meters under the surface of the ice sheet. Lake Vostok, discovered in 1996, is the largest of these subglacial lakes.
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Question 1
Which oceans surround Southern Ocean?
A. Pacific Ocean and Atlantic OceanB. Indian Ocean
C. Atlantic OceanD. Pacific, Atlantic, and Indian Oceans
Question 2
Which of the following fact about the Antarctica is NOT correct?
A. Antarctica is located around the South Pole.B. It is the largest continent.
C. There are many volcanoes in Antarctica.D. Surface of the Antarctica is always frozen.
Question 3
How much area does the Antarctica have?
A. more than forty million square kmB. more than 4,892 meters
C. more than fourteen million square kmD. 17,968 kilometers
Question 4
What is the coastline of Antarctica made of?
A. ice formationsB. grassland
C. forestsD. rocks
Question 5
Which of the following covers about 98% of Antarctica?
A. mountainsB. grass
C. lakesD. ice sheet
Question 6
How thick is the Antarctic ice sheet?
A. about 16 kilometersB. about 1.6 kilometers
C. about 20 millimetersD. about 17,968 kilometers
Question 7
Which continent has approximately ninety percent of the world's ice?
A. ArcticB. Oceania
C. EuropeD. Antarctica
Question 8
Where is the Vinson Massif peak located?
A. in the Mount ErebusB. in Lake Vostok
C. in the Ellsworth MountainsD. in Deception Island
Question 9
What will happen if the West Antarctic Ice Sheet breaks down?
A. ocean level will riseB. ocean level will drop
C. volcanoes will become activeD. Ozone layer will be depleted
Question 10
How tall is the highest peak in Antarctica?
A. 4,092 metersB. 4,892 meters
C. 17,968 kilometersD. 20 centimeters
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