It is relatively easy to spot a gerund, given that it looks like a verb + ing. Having that in mind, the gerund here is drinking from the tap. This gerund acts as the subject of the sentence, which you can easily determine by asking the question What is perfectly safe?, and the answer will be Drinking from the tap - that's how you know it is the subject.
So, the correct answer is drinking from the tap/subject.
Answer:
1.) distance between particles
Explanation:
As the substance changes from liquid to gas, bonds within it's molecules almost disappear and the average distance between them increases.
Answer:
all I now is that In most elections in the United States, you either need to vote in-person at an official polling place or by casting an absentee ballot. sorry if it doesn't help much.
