conducting lab & field investigations: engineering design\n20 of 20\nwhich type of investigation would be…

conducting lab & field investigations: engineering design\n20 of 20\nwhich type of investigation would be best to determine how to decrease exhaust from a gasoline engine?\n○ experimental investigation\n○ descriptive investigation\n○ comparative investigation

conducting lab & field investigations: engineering design\n20 of 20\nwhich type of investigation would be best to determine how to decrease exhaust from a gasoline engine?\n○ experimental investigation\n○ descriptive investigation\n○ comparative investigation

Answer

Brief Explanations:

An experimental investigation allows for the manipulation of variables to test a hypothesis. To find out how to decrease exhaust from a gasoline engine, variables like fuel - type, engine design elements etc. can be manipulated and tested. A descriptive investigation just records data without manipulation and a comparative investigation compares different pre - existing conditions or samples.

Answer:

Experimental investigation