Which of the following are properties of mechanical waves? A. Waves transport energy, but not matter.
B. Energy travels toward the source in all wave motion.
C. The particles of the medium always move parallel to the wave
motion.
D. The three categories of mechanical waves are transverse,
longitudinal, and surface waves.

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

its c i just checked it

i'm on my way to history not a mistory.