Question

: Balloons are filled with
Which metal pollute the air of a big city?

Which of the following does not contain a coinage metal?
1. Silver and Gold
2. Zinc and Gold
3. Copper and Silver
4. Copper and Gold

Answer 1

Answer:

Helium

zinc and gold

Explanation:

HOPE IT HELPS!

Answer 2

Answer:

Helium

Zinc and gold is a good answer to the question