Answer:academic
Explanation:
I just answered it and got it right
a. three major supporting details.
There are three supporting details for the main idea on the theories to explain why people yawn. Each of the supporting details contains a key word or phrase to indicate that they indeed are a main supporting detail. These key words and phrases are "One explanation is...", "A second theory...", and "Yet another explanation...". These all show the supporting detail is contained in the sentence. The last sentences just build and connect to information that has already been introduced.
Answer:
A short speech introducing the subject of the Civil War is written below in brief details.
Explanation:
The Civil War was the most destructive war in American archives. ... The Civil War was also considered the first use by Americans of canons, secret traps, and land mines. The antiquated maneuvering also committed to the high number of fatalities. Extensive frontal attacks and massed structures appear in large numbers of graves.
