tle directions;answer the processing questions below in your activity notebook. 1:how do we conduct a pre-operative checkup of farm tools? 2:why is there need to conduct a pre-operative checkup of farm tools? 3: Briefly explain the steps in performing preventive measures. 4:Give at least three (3) benefits of preventive maintenance aND explain each. 5:Why do we need to observe the preventive maintenance of the farm tool?