I. On the dot below, which represents the book, draw and label the forces (not components) that act on the book at the lowest point of its circular path. Each force must be represented by a distinct arrow starting on, and pointing away from, the dot.

1 weight, 2)  normal and 3)  friction

Explanation:

In a circular path on the block various forces are exerted, at the lowest point of the path we have the following forces

1) The weight that is the attraction of the Earth on the body, is directed vertically, downwards

2) The normal that is the reaction of the Earth to the support of the body, is directed vertically upwards

3) if the track has a friction force in the opposite direction of the turn, directed horizontally and in the opposite direction of the direction of movement.

it becomes positively charged by charging it

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide