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

Under a crushed sugar cube is added and the water is stirred conditions would a sugar cube dissolve most quickly when placed in a liter of water at room temperature.
Under which conditions would a sugar cube dissolve most quickly when placed in a liter of water at room temperature?

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?

Sensory neurons transmit nerve impulses from sense organs and internal organs to the brain via the spinal cord.

Sensory neurons transmit nerve impulses from sense organs and internal organs to the brain via the?