Question

which are accurate statements about dark matter? select the two correct answers. (1 point) scientists thoroughly understand what dark matter is and what it does. scientists are not convinced that dark matter exists. scientists have hypotheses about dark matter but need more data to test their ideas. new data could cause scientists to change their hypotheses about dark matter.

Explanation:

• "Scientists thoroughly understand what dark matter is and what it does" is incorrect because dark matter is still not fully understood, and research is ongoing to learn more about its nature and effects.
• "Scientists are not convinced that dark matter exists" is incorrect. There is strong evidence (e.g., gravitational effects on galaxies and galaxy clusters) that supports the existence of dark matter, and the scientific community widely accepts its existence.
• "Scientists have hypotheses about dark matter but need more data to test their ideas" is correct. The nature of dark matter is not fully known, so scientists propose hypotheses (e.g., about its particle nature) and need more observational or experimental data to validate or refine these ideas.
• "New data could cause scientists to change their hypotheses about dark matter" is correct. In the scientific method, new evidence or data can lead to the revision or replacement of existing hypotheses as our understanding evolves.

Answer:

C. Scientists have hypotheses about dark matter but need more data to test their ideas
D. New data could cause scientists to change their hypotheses about dark matter