Q: Most mountains on Earth occur in huge ranges stretching for thousands of miles. Which event is most likely to cause the formation of these mountain ranges?

OPTIONS:
- erosion of rocks
- violent earthquakes
- volcanic eruption
- movement of plates
A: movement of plates
Q: Which of the following is a trait that a dog does NOT inherit from its parents?

OPTIONS:
- the length of its fur
- the shape of its nose
- the size of its appetite
- the color of its fur
A: the size of its appetite
Q: Corn can be used to make ethanol, which is a fuel for some cars. What problem could be caused by the increased use of ethanol?

OPTIONS:
- increase in fossil fuel production
- decrease in corn production
- increase in severe weather
- decrease in nutrients in soil
A: decrease in nutrients in soil
Q: When prehistoric animals died and their soft parts decayed, which product was formed?

OPTIONS:
- oil
- sand
- coal
- shale
A:
oil