Question

after watching a show about submarines, jamil wants to learn more about the oceans. which question could be answered through scientific investigation?

which ocean has the best beaches?

which type of whale is the most popular?

what ocean has the best scuba diving spots?

what substances dissolve in ocean water?

Explanation:

• "Which ocean has the best beaches?" is subjective (based on personal opinion of "best").
• "Which type of whale is the most popular?" is about popularity (a matter of opinion or preference).
• "What ocean has the best scuba diving spots?" is also subjective (depends on personal views of "best").
• "What substances dissolve in ocean water?" can be investigated scientifically through experiments and analysis to identify soluble substances.

Answer:

D. What substances dissolve in ocean water?