What is this passage mainly about?

The author implies that foods

With which of the following statements would the author most probably agree?

Approximately how many cars were there in the United States in 1900 ?

According to the passage, vitamins are

How many vitamins must be derived from nourishment?

What does the passage mainly discuss?

It can be inferred from the passage that the eye

The author remarks that students nowadays tend to _________.

According to the passage, people at the 1900 National Automobile Show favored cars powered by

According to the author, King was influenced by

The phrase “daily diet” is closest in meaning to

A continual lack of one vitamin in a person’s diet is

Why is noise difficult to measure?

According to the author, blacks in King’s neighborhood were involved in all the following businesses and services EXCEPT.

“Cutting the Apron Strings”, the title of the passage, can be interpreted as _________.