Exam-style question
Try this first
Which of the following statements about black holes is true?.
- A.Black holes can be observed directly
- B.Black holes emit light
- C.Black holes can only form from massive stars
- D.Black holes have a defined surface
Model answer
What a good answer should say
- Black holes can only form from massive stars
Explanation
Why this works
Black holes typically form from the remnants of massive stars after they undergo supernova explosions, leading to a gravitational collapse.
Common mistake
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