A star passes through stages of instability and stability. When core hydrogen fusion begins in a pre main sequence star, the star enters a stage of <u>stability</u>.
When the body has sufficient mass, the collapsing gas and dust burn hotter which eventually reaches temperatures enough to fuse hydrogen into helium. Thus, the star turns on and becomes a main sequence star, powered by hydrogen fusion.
A pre main sequence star is a star in the stage when it has not yet reached the main sequence. Earlier it is a protostar that grows by acquiring mass from its surrounding dust and gas.
Hence, in the pre main sequence star stage, core hydrogen fusion begins and the star enters a stage of stability.
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Answer:
True
Explanation:
Priority Population Groups:- These populations can be cultural such as Aboriginal and Torres Strait Islanders, who have health statistics that match developing worlds. They can also be environmental such as rural and remote living people, who have limited access to health care facilities and services.
Health promotion program are directed these group of people because they have little or access to medical services.
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Physician
Industrialization led to the North and South becoming more split apart which caused them to have more disputes.
Answer:
B
Explanation:
Black codes were used after the Civil War to suppress the rights of former slaves.
