If there is an about page where it tells whom made the website, as well as a copyright 2016 on the bottom of the page. This basically means the website is useful and updated by the creators. Another factor which the site doesnt always need but if it has an https at the beginning of the url then it should be good and valid because that means the site is secured. Also factor in the sections where articles are present, if they have a date and an author towards the bottom or top of the article, then it can be trusted as well. Theres a lot more you can look for in a site and validating if it is an okay site but these are a few examples. Hope this helped!:)
Answer: Increase the pace of research in finding and producing vaccines.
Explanation: The modelling software is the software that is used by the international researchers for the purpose of the researching about the vaccines. There are diseases which still don't have any vaccines and they create serious health conditions.
So, researchers are investigating and trying to develop the vaccines with increasing pace.Other options are incorrect because researchers are not looking for the movie scripts, marketing products and evidences.
is a collection of information stored under a single name.

Answer:
a person who creates a computer virus is a programmer
Answer:
Para ayudar a mantener a las personas informadas y actualizadas
(No hablo español usé el traductor de Google)