3 Written questions
2 Multiple choice questions
- In popular cultures, "extraterrestrials" are life forms — especially intelligent life forms— that are of extraterrestrial...
- a mass of stone or metal that has reached the earth from outer space; a fallen meteoroid.
2 True/False questions
asteroid → any of the small bodies, often remnants of comets, traveling through space: when such a body enters the earth's atmosphere it is heated to luminosity and becomes a meteor.
Comet → a meteoroid that has entered the earth's atmosphere.