Answer:

answer on 4)

1. Sharpen tool before and after use

2. Oil or grease metal parts.

Explanation:

1When you sharpen tools it reduces the amount of force you need to apply to perform the task. Blunt tools may break when being used.

2.This will prevent rusts of metal parts of tools and equipment. Oiling the movable parts makes the tools easy to work with. It also increases the efficiency of the tool or equipment