instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
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.
answer:
Which statement best explains why the Sun and the Moon appear to be about the same size in the sky?


question:
Electric motors transform electrical energy into kinetic energy.
answer:
Electric motors transform electrical energy into what other form of energy?


question:
A connection to the placenta is required for a newborn baby to begin breathing.
answer:

What connection is required for a newborn baby to begin breathing?