Since 1950, the Energy Efficiency of the U

question 109

Multiple Choice

Since 1950, the energy efficiency of the U.S. economy in terms of producing goods and services has

• A) not changed.
• B) more than doubled.
• C) risen about 50 percent.
• D) risen more than threefold.

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Definitions:

Total Body Height

A measure of an individual's full stature from the bottom of the feet to the top of the head when standing upright.

Parietal Bones

Paired bones in the human skull forming the sides and roof of the cranium.

Endochondral Ossification

The process by which growing cartilage is systematically replaced by bone to form the growing skeleton, mostly in long bones.

Sphenoidal Fontanel

An area on the skull where bones have not yet fused, specifically located at the junction of the sphenoid, temporal, and parietal bones; often closes early in life and may not be present in all individuals.