Answer:
C) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere.
Explanation:
Electromagnetic waves do not require a medium to travel. they can travel through vacuum also. for example:- light wave is an electromagnetic wave and it can travel through vacuum also.
On the other hand, sound wave require a medium to travel. sound waves can not travel through vacuum.
I HOPE IT WILL HELP YOU?:-)
" Gametophyte, Secondary. "
Answer:
no............. they don't on molecules .....
Answer:
the number of protons in an atom
Explanation:
if u read the passage then u would know it so i prefer going thru passage and reading questions
