Question

Which two types of waves can transmit energy through a vacuum?

Answer 1

The answer would be the sound waves.

Answer 2

1.radio waves  

2̶.̶s̶e̶i̶s̶m̶i̶c̶ ̶w̶a̶v̶e̶s

3.sound waves  

4̶.̶w̶a̶t̶e̶r̶ ̶w̶a̶v̶e̶s

5̶.̶x̶-̶r̶a̶y̶s