Not sure if he called it a "holy experiment and that all I know is that Pennsylvania means "Penn's Woods".
D. the balls were dropped from different heights
Your answer would be the biofuel industry. The biofuel itself is combustible energy made out of living plant matter, like sugar canes or trees. Biofuel uses plant matter to create energy, but has been increasing deforestation in recent years.
I think that any establishment that is kid-friendly, such as a school, restaurant, arcade, sporting goods store, or daycare would be a great addition next to a park where children play and soccer games are played.
