Which evidence combination supports the Hawaiian hotspot hypothesis?
Correct answer(s):
- Volcano ages and Pacific Plate-motion patterns
Topic
Geoscience Research
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Quizzes in Geoscience Research
What geological technique helps date older Hawaiian volcanic rocks?
Correct answer(s):
- Radiometric dating
Why is the age of a Hawaiian island not always identical to the age of one volcano?
Correct answer(s):
- A single island can contain several volcanoes formed at different times
What processes together explain long-term change along the Hawaiian chain?
Correct answer(s):
- Volcanism, plate motion, subsidence, and erosion
Why should Hawaiian volcanic hazard assessments separate lava, ash, gas, and seismic effects?
Correct answer(s):
- Their likelihood, movement, and consequences differ
What evidence is especially useful for local flash-flood risk assessments in Hawaii?
Correct answer(s):
- High-resolution terrain and rainfall data
Which variables influence the strength of a Hawaiian rain shadow?
Correct answer(s):
- Wind direction, atmospheric moisture, and terrain
Why can statewide average rainfall misrepresent conditions on particular Hawaiian slopes?
Correct answer(s):
- Strong local microclimates produce different rainfall regimes
What is the best basis for assessing change in coral reef health around Hawaii?
Correct answer(s):
- Long-term, location-specific ecological monitoring
Which two factors should be combined in coastal climate-risk assessment?
Correct answer(s):
- Sea-level trends and local land elevation