Rivers of ice - The Briksdal glacier

9 important questions on Rivers of ice - The Briksdal glacier

What is a glacier

An ice mass that slowly glides down a slope

Why is the surface of the glacier grey?

this is because the ice is mixed with powder and debris from the rocks on the mountainsides

What is the name of he rocky material carried by a glacier?

moraine
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Where does Jostedalsbreen remain from?

From a gigantic that one covered the whole of Scandinavia.

Why are fjords left overs from the ice age?

They are old glacier valleys that have filled with seawater

A fjord has three characteristics of an Ice Age. What are they?

A deep U-shaped valley, a flat bottom and a glacial terminus

How many ice ages have been in the past?

ten major forty small

What is the name of a period between two ice ages when the temperature rises agin

interglacials

How many degrees of Celsius must the average temperature on earth drop in order to start and ice age?

five degrees

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