Question

Which two statements are true of electromagnetic waves?

DA. They do not need a medium to transfer energy.
DB. They travel by causing particles of matter to vibrate.
C. They need a medium to transfer energy.
DD. They transfer energy by disturbing electric and magnetic felds.

Answer 1

A and D

Step-by-step explanation:

Just did it

Answer 2

AD

Step-by-step explanation:

electromagnetic waves do not need a medium to travel, examples are ultraviolet radiation and infrared radiation.