I believe it would be the second one
:0) hope i helped :0)
<u>A credible source of information is the reliable one, based on supporting evidence:</u>
A study by researchers published on a university’s website is a credible source of information as its validity is authenticated by the fact that the university has allowed its appearance on its formal website which is viewed by millions of users every day.
Another credible source can be a book written by a scholar on the topic with examples supporting his viewpoint. It will carry his point of view based on research which can be used by the researcher to make his study. Such books have been used by researchers in the past to improve the development of a topic and carry on their research.
It does not show how the Dust Bowl changed people’s lives.
Grassy i think is the answer if you were asking for the Adjective in "grassy slope" it'd be grassy
Well, it depends on all on the sources. Web sites such as .org can be a reliable source. Some things that are usually reported, have an evidence and a claim to support what the article, and it should have a publisher and date at the bottom of the page. some common things to look for are headlines, a picture of proof, publisher, and the source^_^