1. A point scored when the ball passes between the goal posts is considered a

May someone explain how to do this question?

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant