Savannas are a dry grassland surrounded by many deserts.
Answer:
They selected the beach at Kitty Hawk as their proving ground because of the constant wind that added lift to their craft. In 1902 they came to the beach with their glider and made more than 700 successful flights.
This is an example of face-saving behavior.
She did this in order to avoid feeling embarrassed, or to lessen the embarrassing situation which may have happened if she showed that she heard them fighting. By pretending she didn't hear anything, she kept the appearance of a normal situation.