Question

when working with power tools, be aware of body and hand ______ to blades.
proximity
coordination
strength
force

Explanation:

When using power tools, safety is crucial. The word "proximity" means nearness or closeness. Being aware of how close (proximity) your body and hands are to the blades of power tools is a key safety consideration. "Coordination" refers to working together smoothly, which is not the main issue here. "Strength" is about physical power and "force" is about exerting power, neither of which fit the context of safety regarding blade - body/hand relationship as well as "proximity".

Answer:

Proximity