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

Tornadoes can occur in any.
At what time of the year can tornadoes occur?

The sun and the moon appear to be about the same size in the sky because the moon is smaller in diameter and is closer to earth than the sun.
Which statement best explains why the Sun and the Moon appear to be about the same size in the sky?

In physics, temperature is defined as the average kinetic energy of the particles in an object?

In physics, _______ is defined as the average kinetic energy of the particles in an object?