According to Our Textbook, What Is the Best Way to Defend

question 6

Multiple Choice

According to our textbook, what is the best way to defend ourselves against an asteroid which is on course to collide with the Earth in 7 years?

• A) The only thing we could do would be to move some people to the Moon so they could survive
• B) If we do it early enough, we could explode something on or near the asteroid to deflect it slightly, so that years later it would then miss the Earth
• C) Asteroids are all rubble piles, so the only thing that would protect us would be a huge thermos-nuclear explosion that vaporizes the entire asteroid
• D) There is no problem, because all asteroid burn up by friction in the Earth's thick atmosphere
• E) There is no possible protection for us; if an asteroid is headed our way, we are all doomed
• Section 13.3: The Long-Haired Comets

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