Tool - online puzzles
Online puzzle Tool
A tool is any physical item that can be used to achieve a goal, especially if the item is not consumed in the process. Tools that are used in particular fields or activities may have different designations such as "instrument", "utensil", "implement", " machine ", "device," or "apparatus". The set of tools needed to achieve a goal is "equipment". The knowledge of constructing, obtaining and using tools is technology.
Some animals are known to employ simple tools. The use of stone tools by humans dates back millions of years. More advanced tools, such as the bow and arrow began to be developed approximately 10000 years ago.
The use of tools contributes to human culture and was key to the rise of civilization.