Which statement is true for electromagnetic and mechanical waves? (1 point)

Question

•Electromagnetic waves travel mainly through matter, and mechanical waves travel only through a vacuum.
•Mechanical waves sometimes travel through a vacuum, and electromagnetic waves sometimes travel through matter.
• Electromagnetic waves require a medium to travel, but mechanical waves do not need a medium.
•Mechanical waves require a medium to travel through, but electromagnetic waves do not need a medium.

Answer 1

Mechanical waves require a medium to travel through, but electromagnetic waves do not need a medium.