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Question 1. Read relevant sections in your textbook about nuclear energy, Module 12: Geological Resources (pages 403-467) or from other reputable sources of your choice (scientific journals/articles) and answer the following questions:Describe two pros and two cons of nuclear energy [40 points]After you submit your answer to the above question, comment on two of your classmates’ posts. [5 points each, total 10 points]Why It Matters: Hydrology (Links to an external site.)Links to an external site.The Hydrologic Cycle (Links to an external site.)Links to an external site.Rivers and Streams (Links to an external site.)Links to an external site.Components of Groundwater (Links to an external site.)Links to an external site.Geologic Features (Links to an external site.)Links to an external site.Oceans and Shorelines (Links to an external site.)Links to an external site.(Optional)Putting It Together: Hydrology (Links to an external site.)Links to an external site.
1. A hypothetical rock is going to be analyzed for its radioactive isotope contents, X and Y. X is the parent and Y is the daughter isotope. Assume that the half-life of the radioactive isotopes is 1,000,000 years. Based on this information, answer the following two questions.A) How much of the parent (X) and how much of the daughter (Y) will be present at the time the rock forms? Choose one of the following (4 points) and explain why (8 points). Total: 12 points.A) X = 100 % ; Y = 100 %B) X = 0 % ; Y = 100 %C) X = 100 % ; Y = 0 %D) X = 50 % ; Y = 50 %B) How much of the parent (X) and how much of the daughter (Y) will be present after 2,000,000 years? Choose one of the following (4 points) and explain why (9 points). Total: 13 points.A) X = 75 % ; Y = 25 %B) X = 50 % ; Y = 50 %C) X = 25 % ; Y = 75 %D) X = 12.5 % ; Y = 87.5%2. The accompanying diagram is a cross section of a hypothetical area. Place the lettered features in the proper sequence, from oldest to youngest (left: oldest; right: youngest). (25 points)[ Hint: “Lava flow I” is the youngest rock because it cuts across all other rocks; “A” is the oldest because it is underneath all other rocks.Note: You don’t need to write the reason as I did above, this was meant to explain to you the reason why “I” is the youngest and “A” is the oldest. You just need to place the letters, as indicated at the bottom of the figure ] i have uploaded the image7 Geologic Time (Links to an external site.)Links to an external site.7.1 Relative Dating (Links to an external site.)Links to an external site.7.1.1 Relative Dating Principles (Links to an external site.)Links to an external site.7.1.2 Applying the Stratigraphic Principles (Links to an external site.)Links to an external site.7.1.4 Applying Relative Dating Principles (Links to an external site.)Links to an external site.7.2 Absolute Age Dating (Links to an external site.)Links to an external site.7.2.1 Radioactivity (Links to an external site.)Links to an external site.7.2.2 Radio-Isotopic Dating (Links to an external site.)Links to an external site.7.2.4 The Age of the Earth (Links to an external site.)Links to an external site.7.2.5 Dating Geological Events (Links to an external site.)Links to an external site.7.2.6 Other Absolute Dating Techniques (Links to an external site.)Links to an external site.

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Read relevant sections in your textbook about nuclear energy, Module 12: Geological Resources (pages
403-467) or from other reputable sources of your choice (scientific journals/articles) and answer the
following questions:
1. Describe two pros and two cons of nuclear energy [40 points]
2. After you submit your answer to the above question, comment on two of your classmates’
posts. [5 points each, total 10 points]
This criterion
is linked to a
Learning
OutcomeInitial
Post
40.0 pts
30.0 pts
20.0 pts
10.0 pts
0.0 pts
Exemplary
Accomplished
Developing
Post
includes
valid
statements
for 2 pros
and 2
cons. The
arguments
made are
thorough,
well
thought
out and
are
generally
supported
by course
materials
or outside
resources.
Post includes
valid
statements
for 2 pros and
2 cons. The
arguments
made are
solid and are
generally
supported by
course
materials or
outside
resources.
Statement
is made for
either the
pros or
cons and is
somewhat
clear; the
arguments
made are
loosely
related to
the topic
prompt
and are
not
entirely
supported
by credible
references.
Needs to
improve
No
Marks
Statement
is not clear
and
pertains to
part of the
question.
Indications
of little or
minimal
effort.
Post is
not
made
or
reflects
very
little
effort.
40.0 pts
1. A hypothetical rock is going to be analyzed for its radioactive isotope contents, X and Y. X is the
parent and Y is the daughter isotope. Assume that the half-life of the radioactive isotopes is 1,000,000
years. Based on this information, answer the following two questions.
A) How much of the parent (X) and how much of the daughter (Y) will be present at the time the rock
forms? Choose one of the following (4 points) and explain why (8 points). Total: 12 points.
A) X = 100 % ; Y = 100 %
B) X = 0 % ; Y = 100 %
C) X = 100 % ; Y = 0 %
D) X = 50 % ; Y = 50 %
B) How much of the parent (X) and how much of the daughter (Y) will be present after 2,000,000 years?
Choose one of the following (4 points) and explain why (9 points). Total: 13 points.
A) X = 75 % ; Y = 25 %
B) X = 50 % ; Y = 50 %
C) X = 25 % ; Y = 75 %
D) X = 12.5 % ; Y = 87.5%
2. The accompanying diagram is a cross section of a hypothetical area. Place the lettered features in the
proper sequence, from oldest to youngest (left: oldest; right: youngest). (25 points)
[ Hint: “Lava flow I” is the youngest rock because it cuts across all other rocks; “A” is the oldest because
it is underneath all other rocks.
Note: You don’t need to write the reason as I did above, this was meant to explain to you the reason
why “I” is the youngest and “A” is the oldest. You just need to place the letters, as indicated at the
bottom of the figure ]
Specific feedback on incorrect answers will be given to each student directly on the submitted
assignment, while comprehensive feedback will be provided on the Announcements page as soon as
grading is completed. Usually this will be no later than a week after the due date for the assignment.
Rubric
Assignment 2 Rubric
Assignment 2 Rubric
Criteria
Ratings
This criterion is linked
to a Learning
OutcomeQuality of
content and
adherence to
instructions on
paragraph/sentence
length
50.0 pts
40.0 pts
20.0 pts
10.0 pts
Exemplary
Accomplished
Developing
Needs to Improve
Post includes valid
and adequate
answers for all
questions. The
arguments made
are thorough, well
thought out and are
supported by
course materials or
outside resources;
strictly followed
instructions on
paragraph/sentence
length.
Post includes valid
answers for most
questions. The
arguments made
are solid and are
generally supported
by course materials
or outside
resources; may
have not followed
instructions on
paragraph/sentence
length &/or left out
one question
unanswered.
The post includes
answers to no more
than 1 question;
answers are clear
and adequate; the
arguments made
are clearly related
to the topic prompt
and are supported
by credible
references;
instructions on
paragraph/sentence
length may not
have been followed.
The post provides
answers to no more
than 1 question and
is not adequately
discussed; did not
follow instructions
on
paragraph/sentence
length; indications
of little or minimal
effort.
Total Points: 50.0
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1. Which of the following is a human induced cause of mass wasting?
weathering of rocks
uplift
removal of vegetation
2. Which of the following is responsible for most types of mass wasting?
rock type
climate
water
3. Which of the following is not a control in rock falls?
gravity
mechanical weathering
type of rock present
4. You hear two students discussing aquifers, student one argues that sandstones make the best
aquifers and student two is arguing that shale makes the best aquifer. Which of the following is
correct?
Student one is correct, but they are only partially correct because sandstone has high permeability but low
porosity.
Student one is more correct because shale has great porosity but low permeability.
Student one is correct because sandstone has high permeability and high porosity.
5. Limestone can be a very jointed type of rock. Which drainage pattern would you expect to see
as a result?
dendritic
radial
trellis
6. On a hot hot summer day, you leave your ice tea sitting outside while you take a dip in the pool.
When you come back, you notice water droplets are now present on the outside of your glass.
What process from the hydrologic cycle are you witnessing?
sublimation
precipitation
condensation
7. Which of the following is not an example of surface mining?
open pit
strip
drilling
8. Some resources take a long time to replenish. This makes them ________.
a reasonable alternative source.
a non-viable alternative source.
susceptible to becoming nonrenewable.
9. Which of the following statements is true of natural gas?
It is composed of mostly carbon.
It is composed of plant remains.
It is composed of alkanes such as methane and ethane.

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