Summary
Let’s summarize the STEP 2 passage.
Fill in the blanks as you read the following.
Paragraph 1: Accumulation of
snowfalls c es itself
into glacial ice over decades. When it starts moving, it is called a glacier.
Paragraph 2: Most glaciers move very ly. A typical glacier advances
about 200 yards a year.
The s s occur when thermal energy melts the
lower layer of ice 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 melts
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 s. 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 glacial flows.
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