During the 1930s,regarding Radio

question 74

Multiple Choice

During the 1930s,regarding radio,

• A) the largest proportion of programming was devoted to news.
• B) most programs were increasingly prerecorded.
• C) around half of all American homes owned a radio.
• D) listening was often a community experience.
• E) radio sets were basically unusable in rural areas without electricity.

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Definitions:

D-Aldopentose

A five-carbon sugar (pentose) with an aldehyde group, distinguished by its orientation in the Fischer projection that matches the D-family of sugars.

Ruff Degradation

A chemical process used to determine the structure of sugars by oxidatively breaking them down into smaller molecules.

D-Allose

An aldohexose sugar, similar to glucose but with a different arrangement of hydroxyl groups, that is a rare naturally occurring monosaccharide.

Methyl β-D-Glucopyranoside

A methyl ether derivative of glucose where the hydroxy group at the anomeric carbon is replaced with a methyl group, forming a β-configuration.