Answer:
It can be Option D and Option A.
because infrared and radio waves both are important.
Explanation:
The most used waves of the electromagnetic radiation are radio wave used in radio communication which plays very important role in countries safety and security and also in transmitting information from one place to other.
X- ray is very important in health related area.
Infrared wave is absorbed by earth and maintains a level of temperature.
Microwaves are used in cooking.
Answer:
The correct answer is: (B)
A: Microwaves
B: Ultraviolet Waves
