The appropriate unit of measure for the area of a soccer field would be square meters (m²).

Here's why:

* Area is calculated by multiplying length and width. In this case, 105 meters * 67 meters = 7035 square meters.

* Square meters are the standard unit for measuring area.

While you could technically use other units like square kilometers or square centimeters, they wouldn't be practical for the size of a soccer field. Square meters provide a convenient and common unit for this type of measurement.