I think the the phrase you are looking for is "ask questions".
These questions can take the form of a research question or a hypothesis (which is not a question but rather a claim that can be tested).
Get an app called, SOCRATIC, works like a charm
They weren't expecting the Japanese to air strike a military base in Hawaii at 5am
Answer:
water systems
Explanation:
limnologist is someone who studies inland water systems such as lakes, rivers, streams, and marshes.
Fewer slaves were needed, and it made cropping and farming a lot easier
