Hydrogen bonds occur between hydrogen in one polar molecule and ___ in another polar molecule. I. Oxygen
II. Fluorine
III. Nitrogen

In the diagram below, the northern hemisphere would be in what season at position a a. fall b. winter c. summer d. spring

What is used to keep track of the gamates and possible offsprings combination

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