IDNStudy.com, kung saan nagtatagpo ang mga tanong at sagot. Hanapin ang mga solusyong kailangan mo nang mabilis at madali sa tulong ng aming mga eksperto.
Answer:
It's necessary cause how will you use the tool of you don't know how to use it. You might cause trouble and injuries if you use the equipment without really knowing it's function and instructions.
Hope it helps!