Which of the following is the best way to use the quote “Scientists believe that Mars experienced huge floods about 3.5 billion years ago”?
Scientists believe that Mars used to have a lot of water and had “huge floods about 3.5 billion years ago.”
“According to NASA, Mars experienced huge floods about 3.5 billion years ago,” and so scientists believe it used to have a lot of water.
Mars used to have a lot of water, since NASA says that scientists believe that Mars experienced huge floods about 3.5 billion years ago.
Scientists think that Mars used to have a lot of water; according to NASA, “Mars experienced huge floods about 3.5 billion years ago.”
