When a transverse wave passes from right to left through a medium, what happens to the particles of the medium? OPTIONS:
- Particles travel from right to left along the wave.
- Particles travel from left to right along the wave.
- Particles move back and forth parallel to the wave.
- Particles move back and forth perpendicular to the wave.
A: Particles move back and forth perpendicular to the wave.

Which energy resource is renewable? OPTIONS:
- fuel oil
- natural gas
- wind
- coal
A: wind

Which of the following is an example of an assistive device? OPTIONS:
- contact lens
- motorcycle
- raincoat
- coffee pot
A: contact lens

The continuous changes of a seed to an adult plant that produces seeds is known as a OPTIONS:
- lunar cycle.
- weekly cycle.
- daily cycle.
- life cycle.
A:
life cycle.