She thinks it is a good idea to list the gasses bass ed on the the gas found in the atmosphere
the answers are the last 3.

Answers are Header row options, descending options and the percentage field options.

Explanation:

It is quite clear that text and paragraph options deal with the text, and hence these cannot be used for sorting the gases based on percentage. However, the header row is used, and the descending options and the percentage field options can also be used certainly for the above purpose, and that is to sort the gases based on the percentage. Any of the above three methods can be used, and I am explaining the header row option.

Select in the document all the columns that you want to sort by. And under the paragraph on the home tab, and inside the Data group, click on the sort option. Now you need to decide that you want to sort in ascending order or you want to sort in descending order. And then select the options button (Header Row) in the My list has the area in case the table has a header row. And finally, click Ok. And you are done.

well cos like a ds it doesn't really die out, unlike for example, fifa, they always come out with a new version, so lets say your fifa 18 is charging you to update the teams and stuff, so, if messi were to go to real madrid (never gonna happen) it would switch messi to the other team, until the owners of fifa come out with fifa 19, then the game would eventually stop updating, and back to the ds, it doesn't really stop working after sometime because there's lots of things that it could be used for, and idk if u know what i'm saying, but long story short, samsung, represents the ds, if they still work, and people love them but not the new version, the old version still works, so they don't really force people to buy new phones, get me?