Explain what a subduction zone is and how it is related to volcanism

What will be an ideal response?


A subduction zone is a deep trench where one plate slides under another. Melting releases low-density magma that rises to form volcanoes.

Physics & Space Science

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A ball collides with a second ball at rest. After the collision, the first ball comes to rest and the second ball moves off at the speed of the first ball. In this collision

A. total momentum is not conserved. B. total kinetic energy is not conserved. C. total momentum is conserved but total kinetic energy is not conserved. D. total momentum is not conserved but total kinetic energy is conserved. E. total momentum and total kinetic energy are conserved and the masses are equal.

Physics & Space Science

The reason the north pole of a bar magnet free to rotate points north is because

a. the south geographic pole of the earth is the Earth's magnetic north pole. b. the south geographic pole of the earth is the Earth's magnetic south pole. c. there is a net accumulation of negative magnetic charge at the Earth's south geographic pole. d. there is a net accumulation of positive magnetic charge at the Earth's north geographic pole. e. the north geographic pole of the Earth is the earth's magnetic north pole.

Physics & Space Science

What's an isotope?

a. a radioactive material b. an atom of an element with a different number of neutrons in the nucleus c. an electrically charged atom d. none of the above

Physics & Space Science

When an elevator is accelerating upward, the frequency of a pendulum inside

A) increases. B) decreases. C) doesn't change.

Physics & Space Science