Answer:
Here Hope has missed clicking the Header Row Options.
Explanation:
Here Hope has missed clicking the Header Row Options, that's why the row of Gas an Percentage has gone to the third number. He has chosen the Ascending Order Button, that's why all the data has been arranged in the alphabetically ascending order, which consequently has dislocate the Main heading of Gas and Percentage from the top.
It should be like as shown below (After clicking Header Row Option):
Gas Percentage
Argon 0.93
Carbon Dioxide 0.04
Nitrogen 78.00
Oxygen 21.00
Other Gases 0.03
