Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

A diploid cell is a cell with two chromosomes.
What kind of cell is a cell with two chromosomes?

An object attached to a spring sliding on a frictionless surface is an uncomplicated type of simple harmonic oscillator.
An object attached to a spring sliding on a frictionless surface is an uncomplicated type of what device?

The surface of the sun is much hotter than almost anything on earth.

How hot is it on the surface of the Sun?