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Biblioteka

GEOL 1301 DC Earth Science Test 4 Fall 2024

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Posljednje ažuriranje over 1 year ago
22 questions
Streams and Drainage Patterns
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Oceans and Shorelines
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Glaciers and Glaciations
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Answer each of the following questions to the best of your knowledge. You may not use notes or help each other during the test. You have both 8th and 9th periods to work on this.

Topics:

Streams and Drainage Patterns

Oceans and Shorelines

Glaciers and Glaciations

Pitanje 1
1.

Match each picture with the type of drainage pattern it depicts

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

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Radial

arrow_right_alt

Dendritic

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Trellis

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Parallel

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Rectangular

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Meandering

Pitanje 2
2.

Sort processes into one of the 3 types of stream transport

  • ions in solution

  • sand grains that are picked up by the current when it is strong and settles out when it is weaker.

  • loose materials are removed from the bed and carried by the fluid

  • pebbles roll along the bottom of a river

  • coarse grains are pushed by the current

  • bed load

  • saltation

  • dissolved load

Pitanje 3
3.

Label the parts of a stream

Drugi mogući odgovor:
source
oxbow lake
channel
delta
confluence
levee
mouth
river
meander
tributary
estuary
Pitanje 4
4.

Identify what part of the stream has the strongest flow. 2 correct answers.

Pitanje 5
5.

In 3 or 4 complete sentences, explain how a meandering stream can change or evolve over time. What are the names of the features that may evolve?

Pitanje 6
6.

In 3-4 sentences, explain the Coriolis effect AND its relationship to gyres.

Pitanje 7
7.

Deep water masses form as a result of dense water sinking to the bottom of the ocean. The deepest water masses form in which of the following locations? 2 answers

Pitanje 8
8.

How old is the ocean? The Thermohaline Circulation pattern of the Earth's oceans allows all the water in the oceans to mix. Because it is driven solely by density, it moves rather slowly, at about 1 cm per second on average, and must travel ~31,500 km to make a complete loop. Using this information, how long does it take for the oceans to become completely mixed?

HINT: watch out for units that need to be converted!

Pitanje 9
9.

Below is shown a tidal chart for the Seattle Harbor. About how much does sea level rise due to tides in this region?

Pitanje 10
10.
Pitanje 11
11.

Identify all the locations on the map below that contain gyres.

Pitanje 12
12.
Pitanje 13
13.

Explain in 2-3 complete sentences why Hurricanes move clockwise and Cyclones move counterclockwise. What force is responsible for this movement?

Pitanje 14
14.

Based on the aerial view of the coastal structures below, determine the direction of longshore drift: (NOTE: the shoreline was originally a straight shoreline.)

Pitanje 15
15.

Reorder steps to show the process of glacial ice formation from first (at the top) to last (at the bottom)

  1. snow

  2. firn

  3. glacial ice

  4. granular ice

Pitanje 16
16.

Sort the following pictures as either mountain or continental glaciers.

  • Mountain glacier

  • Continental glacier

Pitanje 17
17.

Match each of the different zones of the glacier pictured below with its correct label

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

10

arrow_right_alt

accumulation zone

8

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ablation zone

9

arrow_right_alt

equilibrium line

2

arrow_right_alt

terminal moraine

12

arrow_right_alt

tributary

4

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medial moraine

6

arrow_right_alt

calving

11

arrow_right_alt

terminus

5

arrow_right_alt

meltwater

7

arrow_right_alt

ice lenses

3

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ice flow

1

arrow_right_alt

glacier bed

Pitanje 18
18.

The East and West Antarctic ice sheets are separated by the TransAntarctic Mountains. Although they share a continent, they are wildly different in their stability. The map and graphs below show how ice thickness across the Antarctic continent is variable, with thin ice over the mountains and thick ice over East Antarctica.

Using this image and your knowledge of glaciers, explain at least 2 reasons why ice thickness plays a role in the stability of the ice sheets.

Pitanje 19
19.

Describe the types of glacial erosion and how they occur.

Pitanje 20
20.

Label the types of moraines on the picture below

Drugi mogući odgovor:
medial moraine
outwash
end moraines
terminus of glacier
lateral moraine
terminal moraine
recessional moraine
ground moraine
Pitanje 21
21.

Glaciers carry a variety of sediments and grains in the ice due to erosion occurring as the glacier flows. Once the glacier melts away, which of the following is the type of sediment that forms from the varied grains collected by the glacier through its journey?

Pitanje 22
22.

The graph below shows the cumulative Milankovitch Cycles on the top line, benthic d18O values in the middle line and ice core records from the Vostok ice core in the bottom line.

Summarize the importance of what this graph depicts.