Which of the following is the most important reason to maintain a high level of cardiovascular health? A. A higher level of fitness makes it easier to develop larger muscles.
B. A higher level of fitness makes you more attractive to other people.
C. A higher level of fitness allows you to live a longer, healthier life.
D. A higher level of fitness improves your IQ.

1. seamount a raised footwall block between normal fault creates this 2. syncline break between rocks where a hanging wall rises relative to a footwall 3. hot spring on rolling hills, this a dip between hills 4. volcanic neck created when a block with hanging walls slips down between normal faults 5. caldera underwater volcano that never reaches above sea level 6. horst natural hot water on earth's surface containing many minerals 7. graben underwater volcano whose top is eroded flat by waves 8. crater less than a mile in diameter; looks like a bowl at the top of a volcano 9. guyot magma that filled the central vent that remains after the volcano has eroded 10. reverse fault over 1 mile in diameter; looks like a bowl over a volcano