Which statements describe how stars are born? Check all that apply.
Understand the Problem
The question is asking which of the provided statements correctly describe the process of star formation. It requires selecting all appropriate options that reflect how stars are born from nebulae through gravitational forces, mass accumulation, and fusion processes.
Answer
Stars form in nebulas; gravity pulls gas and dust, leading to collapse, heat, and fusion.
The statements that describe how stars are born are:
- Stars are born in clouds of gas and dust called nebulas.
- The gas and dust are pulled together by gravity.
- The pulled-together cloud collapses and becomes hot and dense.
- Heat and pressure cause nuclear fusion, which signals the birth of a star.
Answer for screen readers
The statements that describe how stars are born are:
- Stars are born in clouds of gas and dust called nebulas.
- The gas and dust are pulled together by gravity.
- The pulled-together cloud collapses and becomes hot and dense.
- Heat and pressure cause nuclear fusion, which signals the birth of a star.
More Information
Stars begin their lives in nebulas. Gravity pulls the materials together, triggering nuclear fusion, which marks the star's birth.
Tips
A common mistake is believing that the formation of a red giant is the initial stage of star birth, rather than a later stage in a star's lifecycle.
Sources
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