Questions 7-8 refer to the following passage. Which of the following statements, if true, would most likely
Question:
Questions 7-8 refer to the following passage.Which of the following statements, if true, would most likely make terraforming Mars more feasible?
a. Scientists have devised a technique to provide a layer of carbon dioxide in the Martian atmosphere, which would trap solar radiation and thus modify temperature.
b. Mars has stronger solar winds than does Earth, thus, making it difficult to retain atmospheric gases.
c. Mars’ core has cooled faster than Earth’s, and its temperature is much lower than Earth’s.
d. Terraforming Mars is likely to have a galvanizing effect on Earth’s governments.
e. Terraforming Mars is unlikely to disturb life on other planets, should it exist.
The controversial concept of terraforming, or changing a planet's atmosphere to make it more habitable for humans, is still no more than a theoretical debate. However, the most recent data from two American Mars Rovers suggest that the terraforming of Mars may be more fea- sible than previously thought. The rovers found evidence of stratification patterns and cross bedding (indicating a history of sediment depos- (10) ited by water) in rocks on the edges of craters, as well as chlorine and bromine, suggestive of a large body of salt water. If Mars once held water, it is possible that its atmosphere was at one time somewhat similar to Earth's. Even if this theory were true, however, scientists would have to prevent a recurrence of the desicca- tion of the Martian atmosphere once it is made habitable, as well as endeavor to preserve any extant life. Of course, until a reliable method of (20) transporting humans to Mars is developed, any possibility of terraforming is mere conjecture. (5)
Step by Step Answer:
A One of the major obstacles to terraforming Mars as mentioned ...View the full answer
1014 Practice Questions For The New GRE
ISBN: 9780375429682
2nd Edition
Authors: The Princeton Review
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