Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

Q: Power is derived from ____ sources, money and people.

A: two
****
Q: Water emits oscillations that are measurable from ____ through Megahertz.

A: zero
****
Q: Fossil fuels come in ____ major forms coal, oil and natural gas.

A:
three
****