*Question*
Q: The density of bone is, in part, related to the amount of what mineral in one's diet? Choices: - potassium - barium - nitrogen - calcium A:
**Answer**
calcium

*Question*
Q: Which factor has a big impact on coastal climates? Choices: - ocean waves - tsunami - tide - large ocean currents A:
**Answer**
large ocean currents

*Question*
Q: What is the upper-most atmosphere known as? Choices: - xerosphere - exosphere - ionosphere - thermosphere A:
**Answer**
thermosphere

*Question*
Q: What are observable patterns of stars found in the night sky called? Choices: - deformations - latitudes - deviations - constellations A:
**Answer**
constellations