1.The sport was created by Americans
2. All
3. Helmet
4. The ball
5. 43ft
6. 60ft 6in
7. hand to use
8. fear
9. batting position
10. finish the swing
A health footprint is, I️t can be seen as the impact of the actions and decisions made by individuals, groups and government have on the health of individuals and communities around the world.
A 'Trend' is a large social influence if this is what you are talking about. Trends are something where one person does/wears it (usually a popular person everyone likes) and then everyone else starts doing it.