Fill in
the blanks as you read the following.
Paragraph 1: Accumulation of snowfalls c itself into glacial ice over decades. When it
starts moving, it is called a glacier.
Paragraph 2: Glaciers move very ly. A typical glacier advances
about 200 yards a year. The surges occur when thermal energy melts the lower
layer of i and the water pressure builds up.
Paragraph 3: More than three-quarters of
the earth’s f is held in the form of ice and some of it melt
every spring and summer, to be used for many purposes such as agriculture,
energy, and drinking water. Norway and Switzerland depend on melt water from
glacier for most of their e
power.
Paragraph 4: Glaciers are found in many
places in many forms. Some are in areas carved out of mountainsides by ice e or on exposed slopes. Some flow down valleys
and some of them fill many adjoining valleys, leaving only the highest peaks
and r . In Greenland and
Antarctica, ice s cover the vast land areas.
Paragraph 5: There are about 200,000
glaciers on the earth. In the Unites States, few glaciers are left outside of A , where there are approximately
2,900 square miles of glacial ice and tourism provides all kinds of activities
such as v glacier from the air or the ocean, walking on
the glacier, or paddling amidst the glacier flows.
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