What Is Dark Energy

question 66

Multiple Choice

What is dark energy?

• A) It is the same as dark matter.
• B) It is the same as normal matter.
• C) It is the same as normal radiation energy.
• D) It is an unknown type of energy that causes a form of "antigravity."

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Definitions:

U.S. Saving

The portion of income that individuals, businesses, and the government in the United States set aside rather than spending it immediately.

National Saving

The sum of private and public savings in a country, representing the total income remaining after expenditures on goods and services.

Domestic Investment

The total investment in physical assets such as buildings and machinery within a country's borders.

Goods And Services

Physical items and intangible benefits provided to satisfy the wants and needs of consumers.