Lesson
Post-test
Answer these
multiple choice questions to the best of your abilities using your knowledge
from the lessons and activities that we have completed. Select the best
answer to each question from what you know now. If you are not sure about
an answer, make your best educated guess.
1. This diagram represents an ice core sample from Vostok, Russia.
Which
layer of ice corresponds with the relative date of the last major ice
age?
a. Layer A
b. Layer B
c. Layer C
d. Layer D
2. What main factor
has resulted in changes in the volume of the Earth's ice?
a. Cooling effects of the world's
oceans
b. Natural decay
c. Global changes in the Earth's climate
d. Damage caused by shipping near the polar
ice caps
3. Changes in the
area and volume of ice sheets cause...
a. The
Greenhouse Effect.
b. Changes in the world's sea level.
c. Cooling of the world's oceans.
d. Colder winters each year.
4. What happened
during the last ice age?
a. Ice
area and volume increased, causing a drop in sea level.
b. Ice area and volume increased, causing a rise in sea level.
c. Ice area and volume decreased, causing a drop in sea level.
d. Ice area and volume decreased, causing a rise in sea level.
5. Ten thousand
years ago, how was the sea level different from today?
a. Sea
level was higher than it is today.
b. Sea level was lower than it is today.
c. Sea level was the same as it is today.
d. Scientists cannot tell how the sea level was different from today.
6. How are the
approximate ages of different layers of an ice core most commonly determined?
a. Through carbon dating the
ice from different layers of the core sample
b. Testing for nitrate stratification
c. By reconstructing the oxygen isotope curve
d. Comparing of the ages of large fossils found within different layers
of ice
7. If the West
Antarctic Ice Sheet melts, what is the predicted change in sea level?
a. Sea level will rise 73 meters.
b. Sea level will fall 73 meters.
c. Sea level will rise 8 meters.
d. Sea level will fall 8 meters.
8. What causes
sea level to rise most significantly?
a. Melting of grounded sheets
of ice.
b. Melting
of ice from high elevations.
c. Blizzards that deposit snow and ice in the water.
d. Melting of large icebergs near Antarctica.
9. Which is a true
characteristic of older layers in a typical ice core sample?
a. Older layers of ice will
contain the fossils of animals, including ancient mammals and dinosaurs.
b. Older layers contain more oxygen than newer layers of ice.
c. Older layers of ice are found within land-locked glaciers and are marked
by volcanic ash from the Jurassic period.
d. Older layers of ice are more compact and found towards the deeper end
of a core sample.
10. This is a map of the size and location of ice sheets in Antarctica today:
 |
 |
Considering current conditions and trends, which map most likely shows what the ice sheets will look like 100 years from now?
a.
|
b. |
c.  |
| d. A prediction cannot be made from current information and there is no obvious trend in the change of the size of the Antarctic ice sheets. |
