A. In Tucson, Arizona. B. In Toronto, Canada. C. In Botswana, Southern Africa. D. In Angola, Southern Africa.
A. One to two meters across. B. Three meters across. C. Four meters across. D. Five meters across.
A. By finding another planet for people to live on. By finding another country for people to immigrate to. C. By building more homes. D. By having more families live together.
A. People will live in nice houses. B. The air will be good to breathe. C. Animals will lose their natural environments. D. There will be a lot of parks and open spaces.
A. Because they can be collected and analyzed. Because they can be sent on a different route. C. Because they can be sent back to space. D. Because they can potentially destroy our planet.
Albert Einstein. B. Christopher Columbus. C. Neil Armstrong. D. Henry Ford.
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