Q: The range of all forms of radiant energy is called the

OPTIONS:
- video spectrum.
- audio spectrum.
- color spectrum.
- electromagnetic spectrum.
A: electromagnetic spectrum.
Q: Which of the following properties provides the BEST way to identify a mineral?

OPTIONS:
- hardness
- shape
- size
- temperature
A: hardness
Q: The surface of the Moon is covered with craters. Most of these craters were formed by

OPTIONS:
- eruptions of active volcanoes
- the impacts of many meteoroids
- shifting rock on the Moon's surface ("moonquakes")
- tidal forces caused by the Earth and Sun
A: the impacts of many meteoroids
Q: An agricultural scientist, George Washington Carver, is most famous for his research on

OPTIONS:
- tobacco.
- peanuts.
- mold.
- corn.
A:
peanuts.