*Question*
Q: The tails of the hale-bopp comet point away from the sun, evidence that light has what property of motion? Choices: - inertia - velocity - acceleration - momentum A:
**Answer**
momentum

*Question*
Q: Hydrogen gas is generated by the reaction of nitric acid and what else? Choices: - gaseous iron - martian iron - carbon - elemental iron A:
**Answer**
elemental iron

*Question*
Q: What type of energy causes erosion at the shore? Choices: - tidal - potential - kinetic - wave A:
**Answer**
wave

*Question*
Q: The geologic time scale is divided into eons, eras, periods, and? Choices: - cultures - tropics - zones - epochs A:
**Answer**
epochs