What Is Happening in a Star That Is on the Main

question 93

Multiple Choice

What is happening in a star that is on the main sequence on the Hertzsprung-Russell diagram?

• A) The star is generating energy by helium fusion, having stopped hydrogen "burning."
• B) The star is slowly shrinking as it slides down the main sequence from top left to bottom right across the H-R diagram.
• C) Stars that have reached the main sequence have ceased nuclear "burning" and are simply cooling down by emitting radiation.
• D) The star is generating internal energy by hydrogen fusion.

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Definitions:

Bloatware

Software that uses excessive amounts of disk space or processing power, often pre-installed on a device and not essential to its function.

Unwanted Software

Programs that are installed on a system without the user's consent, often leading to negative performance impacts or security risks.

New Computers

Recently manufactured computer systems that often feature the latest technology and specifications.

Open Source Software

Software with source code that anyone can inspect, modify, and improve, promoting collaborative software development.