)Why Is the Era of Nucleosynthesis So Important in Determining

question 8

Multiple Choice

) Why is the era of nucleosynthesis so important in determining the chemical composition of the universe?

• A)All the elements except hydrogen were produced after the era of nucleosynthesis.
• B)We can observe spectra from this era to determine what the primordial mix of the elements was at the beginning of the universe.
• C)Except for the small amount of matter produced later by stars,the chemical composition of the universe is the same now as at the end of the era of nucleosynthesis.
• D)We can study the processes that occurred during the era of nucleosynthesis to determine how most of the elements in the universe were created.
• E)By knowing how much matter was created during the era of nucleosynthesis,we can determine whether the universe is open or closed.

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Definitions:

Average Variable Cost

The total variable cost divided by the quantity of output, representing the variable cost of producing one additional unit.

Marginal Cost

The financial outlay for making an additional unit of a product or service.

Average Total Cost

The total cost divided by the number of goods produced; it includes all variable and fixed costs.

Average Variable Cost

The total variable cost divided by the quantity of output produced; it varies with production levels.