Newton's First Law is: Question 1 options:

Force= Mass x Acceleration

An object in motion will stay in motion unless acted upon.

For every action there is a reaction.

it's option 2

Explanation:

Newton's first law states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force

the five characteristics of adolescence are biological growth and development, and undefined status, increased decision making, increased pressure and the search of self.

c. magnitude and direction