Answer:
A vaccine activates our immune system without making us sick. Many dangerous infectious diseases can be prevented in this simple and uncostful
drug .Vaccines have eliminated some of the most dangerous, fatal diseases in human history.
Answer:
People that like the restaurant
Explanation:
In order to judge the feeling of the town, you should take into aspect what other people think of it, and since the people's numbers change, it would be good use to measure some aspects
Correct: The sun is the center of the solar system. It is mostly gas. It is the most massive object in the solar system.
