If mountains rose by 1mm/yr, how high would they be after 1,000,000 years

25 Jun If mountains rose by 1mm/yr, how high would they be after 1,000,000 years

Question
Exercise 1.10a (i b)

If mountains rose by 1mm/yr, how high would they be after 1,000,000 years? (in meters)

10 meters

10,000 meters

100 meters

1000 meters

4 points

QUESTION 2
Exercise 1.10a (ii a)

Assuming a constant rate of uplift for the Himalayas, how fast did the Himalayas rise? (in km/yr)

1.9 km/yr

1.9 x 10^-4 km/yr

1.9 x 10^-7 km/yr

1.9 x 10^-1 km/yr

4 points

QUESTION 3
Exercise 1.10a (iii a)

If Earth were only 6,000 years old as we once believed, how fast would the rate of erosion have had to be for these mountains to be eroded to sea level in that amount of time? (in m/yr)

1466.7 m/yr

150 m/yr

1.5 x 10-3 m/yr

1.46 m/yr

4 points

QUESTION 4
Exercise 1.10d

At a rate of 2mm every 10 years of erosion, how many years would it take to erode the Himalayas down to sea level?

44,000,000 years

440,000 years

1,760,000 years

44,000 years

4 points

QUESTION 5
Exercise 1.11a

Why does lithostatic pressure increase more rapidly with depth than hydrostatic pressure?

Because rock is less dense than water.

Because there is a lot more rock on the Earth’s surface than there is water.

Because there is a lot more water on the Earth’s surface than there is rock.

Because rock is more dense than water.

4 points

QUESTION 6
Exercise 1.11b (i)

What is the lithostatic pressure at a depth of 8km below the surface of a continent?

3.3Kbar

8 Kbar

2.4 Kbar

24 Kbar

4 points

QUESTION 7
Exercise 1.11b (ii a)

What are the temperature and pressure conditions in the Earth at a depth of 3.5km?

1.2 degrees C/ 80 Kbar

1.8 degrees C/ 135 Kbar

80 degrees C; 1.2 Kbar

135 degrees C/ 1.8 Kbar

4 points

QUESTION 8
Exercise 1.1a

What is the rate of submergence of the pier?

0.67 cm/yr

0.0067 cm/yr

150 cm/yr

600 cm/yr

4 points

QUESTION 9
Exercise 1.1b

How many years will pass before the high water mark is less than 30cm from the base of the pier deck?

Approximately 30 years

Approximately 13 years

Approximately 120 years

Approximately 75 years

4 points

QUESTION 10
Exercise 1.2a (ii)

Which of the following would be considered part of the atmosphere? (choose one)

the air we breathe

the plants on the Earth’s surface

Animals at the Earth’s surface

All of the water on the surface of the planet

All of the above are part of the atmosphere

4 points

QUESTION 11
Exercise 1.2a (v)

Which of the following would be considered part of the cryosphere? (choose one)

plants

the ocean

the gases that surround the planet

glacial ice

All of the above are components of the cryosphere.

4 points

QUESTION 12
Exercise 1.4b (ii)

Using the graph you created on page 10, how hot could it be in the bottom of a mind that is 2km deep?

between 50 degrees and 100 degrees celcius

between 30 degrees and 50 degrees celcius

between 30 degrees and 100 degrees Celcius

between 15 degrees and 50 degrees celcius

4 points

QUESTION 13
Exercise 1.6a (ii)

How many times larger is the dog than the flea?

10,000 times larger

10 times larger

1000 times larger

100 times larger

4 points

QUESTION 14
Exercise 1.6b (i)

How many times larger than the geologist is the Earth?

12,800 times larger

1000 times larger

6,400,000 times larger

12,800,000 times larger

4 points

QUESTION 15
Exercise 1.6b (ii b)

How large would the drawing of the Earth have to be (in miles) if it were drawn at the same scale as the geologist?

176.77 miles

2121.2 miles

933,333 miles

709,632,000,000 miles

4 points

QUESTION 16
Exercise 1.7a (i b)

What distance does the Earth travel during a single complete orbit? (in miles)

1,600,109.6 miles

59,713,375.8 miles

942,000,000 miles

584,040,000 miles

4 points

QUESTION 17
Exercise 1.7a (ii a)

What is the velocity of Earth as it orbits the Sun? (in km/hr)

22,608,000,000 km/hr

19,625,000 km/hr

107,534 km/hr

95541401.3 km/hr

4 points

QUESTION 18
Exercise 1.7b (i b)

At what velocity would a person standing at the equator move due to our planet’s rotation? (in mi/hr)

333.3 mi/hr

166.7 mi/hr

96,000 mi/hr

1046.7 mi/hr

4 points

QUESTION 19
Exercise 1.7c

Is a person standing at a point halfway between the equator and the north pole moving faster or slower than a person who is standing on the equator? Why?

Faster, because that person is traveling a shorter distance in the same amount of time.

Slower, because that person is traveling a shorter distance in the same amount of time.

Faster, because that person is traveling a longer distance in the same amount of time.

Slower, because that person is traveling a longer distance in the same amount of time.

4 points

QUESTION 20
Exercise 1.7d (i)

How many sodium atoms would you need to span the period?

20 sodium atoms

80,000 sodium atoms

500 sodium atoms

20,000 sodium atoms

4 points

QUESTION 21
Exercise 1.9 c (i)

If you saved a penny a day, how many days would it take you to have $1 million?

100,000,000 days

99,999,999 days

1,000,000 days

273,972.6 days

4 points

QUESTION 22
Exercise 1.9a (i a)

If you want to represent the 4.57 billion years of geologic time with a roll of masking tape so that 1 inch represents 1 million years, how long would the tape have to be? (in inches)

45,700 inches

4,570 inches

45,700,000 inches

457 inches

4 points

QUESTION 23
Exercise 1.9b (i c)

If you wanted to represent geologic time with a 24 hour clock, how many years would be represented by a single hour?

52,893.5 years

190,416,666.7 years

3,173,611.1 years

86,400 years

4 points

QUESTION 24
Exercise 1.9c (ii a)

If you collected a penny a year for a hundred years, how much money would you have?

$1.00

$100

$10,000

$1,000

4 points

QUESTION 25
The cold, black rock formed when lava flows are cool enough to stand on is called…

Metamorphic

Extra-terrestrial

Igneous

Sedimentary