Answer:
2.E, 3.A, 5.C, 6.B, 8.D
Explanation:
There wasn't enough options for the amount of definitions you gave.
Answer:
Any form of technology.
Explanation:
Gives future scientists primary data to compare past and present technology so they can analyze just how far we've come.
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.
To learn more about pre main sequence star here:
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Show of force operations is the correct answer.
Show of force operation is a military operation that takes place in order to warn or intimidate an opponent. They can be executed by militaries, police officers, or others armed groups. For instance, last year the United States airpower made show of force to protect our troops in Syria.
Alcoholic Anonymous is an example of reformative social movement. This is because by definition a reformative social movement seeks to make some changes to a problematic aspect of society. Considering the nature of Alcoholic Anonymous, It is an international nonprofessional self-supporting group of people with a drinking problem, and who wish to address and make a positive change in their lives in regard to the drinking problem.
