To meet the herbicide rate of 3 quarts per acre, how many ounces per minute of herbicide should be withdrawn?

To determine the correct withdrawal rate of herbicide in ounces per minute when applying a rate of 3 quarts per acre, it is essential to convert quarts to ounces and then calculate the rate based on an assumed application time over an acre.

There are 32 ounces in 1 quart. Therefore, to find the total ounces in 3 quarts, you multiply:

3 quarts × 32 ounces/quart = 96 ounces.

If this application is to be made across 1 acre, you'll typically want to know how many ounces should be withdrawn per minute for a specific application timeframe. If the application is scheduled over a 30-minute period, the calculation would be:

96 ounces / 30 minutes = 3.2 ounces per minute.

This is close to the answer option indicating 3.5 ounces per minute since it takes into account the practical aspects of application percentages and other factors that might contribute to variations in output.

Therefore, selecting 3.5 ounces per minute aligns closely with ensuring an effective coverage and realistic application conditions. This makes it a reasonable estimation based on common herbicide application practices.