Answer:
Most people give credit to Benjamin Franklin for discovering electricity. ... In 1752, Franklin conducted his famous kite experiment. In order to show that lightning was electricity, he flew a kite during a thunderstorm. He tied a metal key to the kite string to conduct the electricity.
I believe it's aerobic exercise.
I think verterbrates have a back bone others do not. I only THINK so.
The rapid release of air/ gas bubbles during cooling
