Question

which question about dogs could be answered through scientific investigation? which breed of dog is the cutest to children? which type of dog gets along the best with cats? how fast does an australian terrier grow? how loving of a pet is an irish terrier?

Explanation:

Scientific investigation can determine growth - rate facts. Questions about cuteness, compatibility, or affection are subjective and not scientifically measurable in a definitive way.

Answer:

How fast does an Australian terrier grow?