What is the function of engineers

Engineers are people that design and create things to better the human and natural worlds.Engineers Create Buildings and structures that serve different purposes One could be an architect someone who designs buildings, or maybe a mechanical engineer and create refrigerators and phones.

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assault rifle is a rapid-fire, magazine-fed rifle designed for military use. it is a shoulder-fired weapon that allows the shooter to select between semi-automatic (requiring you pull the trigger for each shot), fully automatic (hold the trigger and the gun continuously fires) or three-shot-burst modes.