7. One company states that it makes the best staplers. To prove it, they use the stapler to
staple a thousand papers and compare it to a
competitor. The competitor's stapler jammed 3
x whereas their stapler only jammed once.
. What is the independent variable and dependent variable?

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

her affection for her parents makes her an especially sympathetic character.