How does elastic rebound work to create earthquakes?
What will be an ideal response?
Answer: Differential stress builds up on both sides of a fault. Frictional force between the fault blocks keeps the rocks in place. Over time, this force causes the rock to bend, much the way a diving board will bend under a person's weight. Eventually, the stress along the fault overcomes the friction holding rocks in place and slip begins, allowing the deformed rock to snap back to its original shape.
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Which term describes the process that occurs as Arctic sea ice melts, exposing the ocean to absorb more radiation, warm, and further melt the ice?
A. equilibrium B. positive feedback C. inputs D. negative feedback E. outputs
What is the likely cause of the 98° tilt of Uranus's axis?
A. a collision with a large body early in the solar system's evolution B. Neptune's effect on Uranus' gravitational field C. distorted magnetic poles due to its large molten iron core D. fluid wave dynamics due to its large molten core
Rocks slides are not a danger when the rocks dip in the opposite direction of the slope
Indicate whether the statement is true or false
How do sand dunes and ventifacts on Mars compare to sand dunes and ventifacts on Earth?
A) They are much larger. B) They are shaped differently due to the composition of the Martian surface. C) They are considerably smaller. D) They are the same.