Respuesta :

Answer:

oxygen. And yes answer this 2.

Prepare a conversation (dialogue) between two friends explaining about the causes and effects of environment pollution and give it a suitable topic. (About 180 to 200 words)

Explanation:

Hi there!

The answer is water.

Reason:

Water is a compound made from hydrogen and oxygen in the ratio of 2:1.

And gold, silver and oxygen are elements not compound.

So, the answer is option A(water).

Hope it helps!