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: Plants produce seed at ____ years of age.

A: eight
****
Q: Fire occurs any time ____ elements are present - fuel, heat, oxygen and the chemical chain reaction.

A: four
****
Q: Parakeets produce about ____ to eight eggs if the parakeet successfully lays eggs.

A:
six
****