Which of the Following Is a Valid Characteristic of the U.S.economy

question 4

Multiple Choice

Which of the following is a valid characteristic of the U.S.economy over the last sixty years?

• A)Investment is more volatile than other components of GDP.
• B)Government spending has remained around 20% of GDP over much of the postwar period.
• C)The U.S.has,for the most part,been running a trade deficit which has trended upward to over 5% of GDP.
• D)all of the above
• E)none of the above

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Definitions:

Storage Root

A root modified for the storage of nutrients and energy, typically in the form of carbohydrates, as seen in carrots and beets.

Photosynthetic Root

Roots capable of photosynthesis, typically found in some aquatic plants, allowing them to absorb carbon dioxide directly from their environment.

Arbuscule

A specialized tree-like structure formed within the cells of plant roots by certain types of fungi in a symbiotic mycorrhizal relationship.

Mycorrhizal Fungus

A type of fungus that forms a symbiotic relationship with the roots of a plant, exchanging nutrients and water in a way that benefits both organisms.