Hydrogen "Burning" by Fusion Reactions Occurs Only in the Deep

question 231

Multiple Choice

Hydrogen "burning" by fusion reactions occurs only in the deep interior of the Sun (and other stars) because

• A) the density there is sufficiently low that hydrogen atoms can collide with each other often enough.
• B) this is the only place in the Sun where there is sufficient hydrogen.
• C) only in the core is the temperature low enough and the density high enough to allow fusion to occur.
• D) the requisite conditions of high temperature and high density occur only there.

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Definitions:

Demand Curve

A graph showing the relationship between the price of a product and the quantity of the product demanded at those prices, generally sloping downwards from left to right.

Price Constraint

A limitation on the price-setting process, often due to factors such as market competition, production costs, or regulatory guidelines.

Break-even Point

The production level at which total revenues equal total expenses, indicating no profit or loss, crucial for understanding the financial feasibility of a product or business.

Supply Curve

A graphical representation showing the relationship between the price of a good and the amount of it that suppliers are willing to sell.