The answer is one mystery that still remains unsolved is why we yawn.
and another theory is that when you yawn it sends oxygen to the brain causing your body to be able to stay awake, hence when you are tired and need to stay awake you yawn a lot.
Answer:
A: They help introduce the speaker to the audience.
Explanation:
Answer:
There is some debate over the actual start of the Renaissance. However, it is generally believed to have begun in Italy during the 14th century, after the end of the Middle Ages, and reached its height in the 15th century. The Renaissance spread to the rest of Europe in the 16th and 17th centuries
plz brainly me :) <3
