SCIN137 Assignment 7

Assignment InstructionsInstructions: ABSOLUTELY NO PLAGIARISM!!!

There are five short-answer questions that are to be answered.  These questions are to be answered thoroughly and short answers that don’t follow spelling and grammar rules will be penalized.  One-sentence answers will not be sufficient to address the question. will be automatically used on all submissions to check for plagiarism as well, so be sure to cite all sources following APA standards.  If the Turnitin report indicated plagiarism, the assignment will receive a zero and will be reported to the registar’s office.  


The questions to be answered will be listed at the end of this page.  When you have completed answering the questions, please enter them in a Microsoft Word Document and upload it.  The Turnitin check will occur automatically.


 EXCEEDS or is at the HIGHEST Expectations:  Effort at this level is greater than expected or at the highest level

“A” level responses MEETS Expectations: Effort at this level represents what is acceptable

“B” to “C” level responses

BELOW Expectations: Effort at this level is less than expected  

Response Content


Response shows insight, depth and understanding of all the basic issues of the question.

Response offers a creative and/or critical analysis.


Response is on point and clearly related to the question.

Outside references are used, when needed.*  

Response is simple, but shows some insight, depth or connection to the key question.

Some material is irrelevant.


Some personal opinion is not adequately expressed, explained or supported.  

Response is simple and unsubstantial; lacks depth and insight.

Response is off point.


References are not used when needed. *



Response consistently shows good grammar, no spelling errors and good editing to promote readability. Response has a few spelling or grammatical errors.

 Poor spelling and grammatical errors present.

Informal language is used.



1. Assume that you have 100 years of continuous temperature records from your local weather service office.  Discuss some of the difficulties you might have trying to determine whether average temperatures have increased during this period.

2. What are meant by the terms positive and negative feedback mechanisms?  Give an example of a process that would be considered a positive feedback mechanism during a period of warming on the earth.  Can you think of a negative feedback mechanism? 

3. Discuss the significance of a predicted increase in global temperatures of 3 C, as opposed to a predicted increase of 1 C.

4. The hottest places on earth are not found near the equator in tropical wet climates but rather in arid climate regions.  Why is this true?

5. What meteorological information is the primary basis for climate classification using the Köppen system?  Give Examples.