Why Are the Spectral Classes in the Order They Are

question 22

Essay

Why are the spectral classes in the order they are?

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Definitions:

Credit

The right side of an account.

Accumulated Amortization

The cumulative amount of amortization expense that has been recorded against an intangible asset.

Depletion

The allocation of the cost of a natural resource to expense in a rational and systematic manner over the resource’s useful life.

Natural Resources

Materials or substances occurring in nature which can be exploited for economic gain, such as minerals, forests, water, and fertile land.