Permafrost
What is Permafrost
A Layer of Earth that is frozen all year long
What two gases are released when a permafrost thaws
Carbon and Methane
What's an ice cap
Mass of ice that covers 50,000 km2 or less
What the range of Thickness that permafrost can be
1 meter to more than 1000 meters(3 to 3,281ft)
What happens if a permafrost melts
Release Gases along with the large increase in sea level as well as major erosion where the permafrost once was
Can you walk on ice caps?
Yes (Greenland you can)
Where is the largest area of permafrost located
Western China(580,000 square miles)
Where do you think subsea permafrost is thicker
Shore,Because as sea level rises the permafrost melts faster the further from the shore you go.
What is a large ice cap? (the name for an ice cap over 50,000 km2)
An ice sheet
The percentage of Permafrost that covers the Earth
15%
how old is the oldest living bacteria that trapped in a permafrost
Around half a million years old
Are ice caps permanent or semi permanent?
They are semi permanent
How many square miles of permafrost cover the Earth
9 million square miles
How much Carbon is in a permafrost
1,700 Billion metric tons of organic carbon in the Arctic permafrost alone
What are ice caps composed of?
Water ice