it's def. TRUE. i got the same question and i got it right
Answer:
Nodes.
Explanation:
Nodes are a point that are on a standing wave that never move.
<span>This pivot is called refraction. It happens because different materials have different densities. The more dense the material the more atoms the light collides with and the slower it travels; the less dense, the fewer the collisions and hence a faster velocity. This pivoting, or refraction, is caused by the light either slowing down or speeding up.</span>
In this order terrestral, rocky, Venus, Earth
