Answered

Which sentence uses correct punctuation? Use the "Basic Mechanics Resource" if needed.
The Mariana Trench is one of the most difficult geographical areas' to access in the world.
O Located in the Pacific Ocean; the Mariana Trench is the deepest trench in the world.
Because the Mariana Trench is so deep underwater, it is very difficult to explore.
But scientist's have been using submarine ships to learn more about the Mariana Trench.



Answer :

GinnyAnswer
The sentence that uses correct punctuation is: "Because the Mariana Trench is so deep underwater, it is very difficult to explore." Here's why: 1. The sentence starts with a capital letter "Because." 2. It has a comma after the introductory clause "Because the Mariana Trench is so deep underwater." 3. The comma is used correctly to separate the introductory clause from the main clause "it is very difficult to explore."