Which of the following is/are made up of non-metals?
Carbohydrates
Proteins
Fats
All of these
Carbohydrates are made up of C, H, O
Proteins are made up mostly of C, H, O, N
Fats are made up of C, H, O
Why are electrical wires not made up of non-metals?
Statement 1: School bells are made up of graphite. Statement 2: Non-metals are not sonorous.