All papers need to be written in MLA format. 3. Students have the option to write on one of two topics listed below. Be sure to answer all the questions to receive total credit on your paper. A. Venus has been referred to as Earth''s twin since the time ofAntiquity. How did people''s view of Venus change after the space age? What are some of the similarities, and differences between Earth and Venus? Why is it so difficult to send probes to the Venution surface? What is the greenhouse effect? What causes it? How does the greenhouse effect on Earth differ from the Venution greenhouse effect? Do you think that our country should continue to devote funds for the exploration of Venus? B. What are Near Earth Objects? Where are the majority of them located? What are some of the different Classes of near Earth asteroids? Why should human kind be concerned with them? What effect have Near Earth Objects had on Earth''s history? What is the Torino Impact Scale, why is it important? What is the difference between a comet and an asteroid? What was Shoemaker-Levy 9, why is it important? Do you think that our country should continue to divert funds to study Near Earth Objects? 4. At least one of your references should come from the internet. To access a wealth of information on either topic go to http://www.ikeepbookmarks.com under account name type: Shane Lab TA. Under password type: student. Search engines like Google (www.google.com) also can be useful but I recommend starting with: ikeepbookmarks.com