Imagine you are standing on one side of a wall and their is a light source on the other side. Which BEST describes why the light would become brighter as you approached the open door in the wall? PLZ HELP

Absorption
Refraction
Reflection

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive

Acid rain is caused by human activity. select the best answer from the choices provided t f

In the cores of extremely hot red giants, nuclear reactions convert helium to