Answer:
Waves that Move through matter only are called Mechanical waves. Waves that move through space only are called electromagnetic waves.
Explanation:
Just Read.
Answer:
1.
an exchange of diverging or opposite views, typically a heated or angry one.
2.
a reason or set of reasons given with the aim of persuading others that an action or idea is right or wrong.
<span>Speculation the others don't fit.</span>
Answer 4 would be the correctly punctuated sentence.
