Refrain is in a song not a poem so C. Refrain.
Mass- triple beam scale
Volume- graduated cylinder
Density- find the mass and the volume of the object. Divide the mass by the volume.
Hope this helps!
it is c 1/2,4
fejfjwfqwefjwqeewhfuehuqeuhehfjweerjqewfjkqejfkhqwejfjhwjkfhwjkefhjkwhfkqjhejkfhjkewhfjkewjkhjekfhqjkhfjkewhfjkhjqhfjkwhjhfjwhjhefhqehfelwhfwjhfjwhfjhewjkfhjkhfqkjfhjhfjkewhfjkwhejfhewjkfhjkqwhfjkwefhjkhqjkffhfkjfhfjhqwjkyu welcome
The answer is A. who and whom are personal pronouns