1. Answer;
-Both wave and a particle.
Explanation;
Light is an electromagnetic wave (does not require a material medium for transmission). This means a changing electric field creates a changing magnetic field.
2. Answer;
D. Height of a wave
Step-by-step explanation;
-Amplitude of a wave is the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position. It is equal to one-half the length of the vibration path and is measured in meters.