Part of the Current Atmosphere of Earth Is Believed to Be

question 11

Multiple Choice

Part of the current atmosphere of Earth is believed to be

• A) the remnants of the original hydrogen and helium gas from the solar nebula attracted by the protoplanet.
• B) the result of the melting and vaporizing of the glaciers from the last ice age.
• C) composed primarily of hydrogen and helium.
• D) composed of gases that were outgassed from the heated rocks sometime after the planet formed.
• E) the result of a collision between the sun and another star.

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Definitions:

Lump-Sum Tax

A taxation method that imposes a fixed amount on the taxpayer irrespective of their circumstances.

Marginal Tax Rate

The tax rate that applies to the next dollar of taxable income earned, indicating the proportion of an additional dollar of income that is paid in tax.

Average Tax Rate

The proportion of total income that is paid as taxes, calculated by dividing the total amount of taxes paid by the taxpayer's total income.

Horizontal Equity

The principle that individuals with similar income or assets should pay the same amount in taxes.