Question 1 How do glaciers advance in direction? Glaciers are static and do not

Question

Question 1

How do glaciers advance in direction?

Glaciers are static and do not move.

through melting and freezing.

through sliding or flowing.

Gradually over continents throughout geologic time.

1 points

Question 2

When continental glaciers retreat, sea-level can rise.

True

False

1 points

Question 3

When a glacier is growing, ice is added to the _________.

terminus

zone of accumulation

zone of ablation

terminal moraine

1 points

Question 4

Icebergs form when pieces of a glacier break off and fall into the ocean.

True

False

1 points

Question 5

Sometimes the glacier retreats and leaves behind chunks of ice that melt and leave a depression. If the depression fills with water, it is a braided stream.

True

False

1 points

Question 6

A glacier starts with a single snowflake the size of a fingernail.

True

False

1 points

Question 7

Which of the following terms are associated with glacial features. (check all that apply).

Firn line

Terminus

icebergs

moraines

glacial till

erratics

1 points

Question 8

Today's glaciers cover about 10 percent of the Earth's land and store 75 percent of the world's fresh water.

True

False

1 points

Question 9

__________ are glacial debris left in the form of hills.

esker

kettle

kames

fjords

1 points

Question 10

Glaciers move at a constant rate of approximately 6 inches per day.

True

False

1 points

Question 11

An example of deposition indicative of a former glacier is a twisting sand-gravel ridge called a(an) __________.

esker

kettle

kame

fjord

1 points

Question 12

Alpine glaciers cover entire continents.

True

False

Glaciers are static and do not move.

through melting and freezing.

through sliding or flowing.

Gradually over continents throughout geologic time.

Explanation / Answer

1) through melting and freezing

2) False , Glaciers on land could affect sea level, and they were notoriously sensitive to climate.

3) zone of accumulation ,  Part of the glacier where snow builds up and turns to ice moves outward from there.

4) True , iceberg travelling on the oceans current smashes to the shores or get trapped in the shallow waters

5) True , Blocks of ice may be broken off from the glacier and buried or surrounded by meltwater sediments. When the ice eventually melts, the overlying sediments have no support, so they frequently collapse and form a depression that often fills with water to become a lake

6) True

7) All the above options are correct as is is assosicated with glacier except the erratics as they are the rock which are carried by ice sheets for hundreds of kilometer

8) True

9) Kames

10) False , The actual forward movement of a particle of ice in the glacier is about 1,000 feet per year. A typical glacier will move at about 10 inches a day,

11) esker

12) False ,  They can form in high mountain ranges (alpine glaciers, or valley glaciers)

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