What are the sources of heat in the Earth's interior?
What will be an ideal response?
There are two sources of heat in the Earth's interior:
i. radioactivity decay
ii. residual heat from Earth's formation
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What is the least expensive and most effective way to protect groundwater?
A. Pump it to the surface, clean it, and return it to the aquifer. B. Inject microorganisms to clean up contamination. C. Pump nanoparticles of inorganic compounds to remove pollutants. D. Use methods to prevent contamination. E. Use bottled water as a substitute.
Which mineral group makes up most igneous rocks?
A) Carbonates B) Sulfides C) Silicates D) Halides
You are an avid skier. What factors should you be sensitive to when skiing to avoid avalanche hazards?
What will be an ideal response?
A ________ forms when a block of ice is buried in drift and subsequently melts, creating a pit
A) kame B) kettle C) tarn D) paternoster