Rock differences

What is the difference between slow rock,hard rock and mental rock??

what do you thoink? hhhmmm slow must be fast hard must slow o
h and metal is like reggae

commen sence lol

Ummm Idkk but I like sum hard rock and definitely slow rock like Maroon5 is like the BESTES

ok well slow rock is obvcisly slow its also called also like alternative rock
for example
30 seconds 2 mars Blink182 Maroon5 Finger 11

hard rock is like slow rock but more hard core music
for example
Killswitch Engage
Avenged Sevonfold
Trapt

then heavy metel is loud scremo like head banging music music
for example
SlipKnot Korn Bullet for my Valentine

Difference from rock and metal!
Rock music is a genre of popular music with a prominent vocal melody, accompanied by electric guitar, bass guitar, and drums. Many styles of rock music also use keyboard instruments such as organ, piano, mellotron, and synthesizers. Other instruments sometimes utilized in rock include saxophone, harmonica, violin, flute, French horn, banjo, melodica, and timpani. Also, less common stringed instruments such as mandolin and sitar are used. Rock music usually has a strong back beat, and often revolves around the guitar, either solid electric, hollow electric, or acoustic.
Metal music_
Metal music is a genre of rock music.And difference from rock is guitars.
In metal music the guitars are the lead instruiment,but not in hard rock or slow rock.