Choose from the List Below for the Following Questions

question 12

Multiple Choice

Choose from the list below for the following questions.You may use a choice more than once.
-Which one is used by a main-sequence star of spectral type B2?

• A)H fusion by the proton-proton chain
• B)H fusion by the CNO cycle
• C)helium fusion
• D)matter-antimatter annihilation
• E)gravitational contraction

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Definitions:

Subsidies

Subsidies are financial contributions provided by the government to encourage the production or consumption of a good or service, often to support industries that are considered vital for the national economy.

Incentives

Rewards or penalties that motivate individuals to take specific actions.

Sweden

A Scandinavian country known for its high standard of living, strong welfare state, and active role in international peace and security.

Market Failure

A situation in which the allocation of goods and services by a free market is not efficient, often justifying government intervention.