"Heat mining", a new means of energy generation that is currently being studied, relies upon what known characteristic of Earth?
A. Relatively thin nature of the oceanic crust
B. Presence of a liquid outer core
C. Geothermal gradient
D. Magnetic field
Answer: C
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Langmuir circulation occurs only ____
a. at the equator b. in the top 20 meters of water c. below 100 meters of water d. at deep-ocean depths e. below the pycnocline
The atmosphere surrounding Earth can be subdivided into 4 layers: troposphere, stratosphere, mesosphere, and thermosphere.
a. true b. false
Prolonged exposure to noise at 85 dbA can cause permanent hearing damage.
Answer the following statement true (T) or false (F)
When making macaroni and cheese you notice the noodles rising and falling in the boiling water. This is best explained through the process of
A. convection. B. conduction. C. advection. D. radiation.