Question

a testable hypothesis could be formed from which question?
○ are bass more active in the daytime than at night?
○ when whales jump out of water, are they happy?
○ are red tulips prettier than tulips of other colors?
○ why are gerbils more popular as pets than hamsters are?

Explanation:

A testable hypothesis requires a question that can be measured or observed objectively.

• "Are bass more active in the daytime than at night?" can be tested by observing bass activity levels during day and night (measurable/observable).
• "When whales jump out of water, are they happy?" involves subjective emotion ("happy") which can't be objectively measured.
• "Are red tulips prettier than tulips of other colors?" involves subjective opinion ("prettier") which is not testable objectively.
• "Why are gerbils more popular as pets than hamsters are?" is a "why" question seeking explanation, not directly testable as a hypothesis (it's more of a research question for exploration, not a testable prediction).

Answer:

A. Are bass more active in the daytime than at night?