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Brain shaped black wooden jigsaw puzzle with copy space. Concept The missing piece of the brain puzzle, mental health and memory problems. Solve problems intelligently
Calm woman relaxing meditating, no stress free relief at work concept, mindful peaceful young businesswoman or student practicing breathing yoga exercises on isolated over lavender background
Tired stressed businesswoman feeling strong headache massaging temples exhausted from overwork, fatigued overwhelmed lady executive worker suffering from pain in head or chronic
Medical Device Individual Blue White portable oxygen cylinder to put gas for patients with respiratory disorders, nose release head held
Concentrated Solar Power CSP. Parabolic trough solar mirrors generate renewable energy in the Negev Desert in southern Israel.

Free stock photosconcentration (508)

A young office worker sitting at desk working with keyboard, papers, highliter in front of empty clear background wall conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-office-worker-sitting-desk-working-453568648">Image used under license from Freestock.com</a>
Listen golden emblemImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/listen-golden-emblem-411936103">Image used under license from Freestock.com</a>
Listen vintage wooden emblemImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/listen-vintage-wooden-emblem-431111053">Image used under license from Freestock.com</a>
Saturation grunge sealImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/saturation-grunge-seal-421541995">Image used under license from Freestock.com</a>
Listen rubber sealImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/listen-rubber-seal-384530605">Image used under license from Freestock.com</a>
Homework retro style wood emblemImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-retro-style-wood-emblem-432665932">Image used under license from Freestock.com</a>
Million retro style wood emblemImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/million-retro-style-wood-emblem-423938227">Image used under license from Freestock.com</a>
A confused busy elegant office worker in trouble with illustrated question marks conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/confused-busy-elegant-office-worker-trouble-424186738">Image used under license from Freestock.com</a>
Innovation wooden emblem. Vintage.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/innovation-wooden-emblem-vintage-420880804">Image used under license from Freestock.com</a>
Homework rubber textureImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-rubber-texture-430635436">Image used under license from Freestock.com</a>
Million with chalkboard textureImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/million-chalkboard-texture-433090279">Image used under license from Freestock.com</a>
Homework retro wood emblemImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-retro-wood-emblem-423973147">Image used under license from Freestock.com</a>
Listen with chalkboard textureImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/listen-chalkboard-texture-416731567">Image used under license from Freestock.com</a>
Million retro style wooden emblemImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/million-retro-style-wooden-emblem-425355382">Image used under license from Freestock.com</a>
Innovation on chalkboardImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/innovation-chalkboard-429525793">Image used under license from Freestock.com</a>
An intelligent elegant business person sitting at a desk and working with drawn empty text bubbles, boxes around him conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/intelligent-elegant-business-person-sitting-desk-424186705">Image used under license from Freestock.com</a>
Listen realistic wooden emblemImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/listen-realistic-wooden-emblem-420319234">Image used under license from Freestock.com</a>
Homework rubber stamp with grunge textureImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-rubber-stamp-grunge-texture-389266030">Image used under license from Freestock.com</a>
Listen emblem with jean textureImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/listen-emblem-jean-texture-433109998">Image used under license from Freestock.com</a>
Saturation rubber seal with grunge textureImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/saturation-rubber-seal-grunge-texture-424663606">Image used under license from Freestock.com</a>
Homework emblem with jean high quality backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-emblem-jean-high-quality-background-425943259">Image used under license from Freestock.com</a>
Homework with chalkboard textureImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-chalkboard-texture-423706453">Image used under license from Freestock.com</a>
An elegant businessman sitting at office desk and working on keyboard with drawn curves, lines illustration on background wall conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/elegant-businessman-sitting-office-desk-working-424186762">Image used under license from Freestock.com</a>
Homework linear rosetteImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-linear-rosette-413780899">Image used under license from Freestock.com</a>
Saturation on camouflaged patternImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/saturation-camouflaged-pattern-433086376">Image used under license from Freestock.com</a>
Saturation wooden emblem. Vintage.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/saturation-wooden-emblem-vintage-431973652">Image used under license from Freestock.com</a>
Homework rubber sealImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-rubber-seal-405512875">Image used under license from Freestock.com</a>
Saturation abstract linear rosetteImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/saturation-abstract-linear-rosette-432649177">Image used under license from Freestock.com</a>
Homework gold badge or emblemImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-gold-badge-emblem-420324688">Image used under license from Freestock.com</a>
Homework chalk emblemImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-chalk-emblem-421518904">Image used under license from Freestock.com</a>
Saturation with denim textureImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/saturation-denim-texture-426555166">Image used under license from Freestock.com</a>
An elegan businessman in suit balancing on a tight rope with a briefcase in front of grey urban wall background environment conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/elegan-businessman-suit-balancing-tight-rope-367077680">Image used under license from Freestock.com</a>
Homework shiny emblemImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-shiny-emblem-414389980">Image used under license from Freestock.com</a>
Million rubber grunge texture sealImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/million-rubber-grunge-texture-seal-403703746">Image used under license from Freestock.com</a>
Listen with denim textureImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/listen-denim-texture-420730060">Image used under license from Freestock.com</a>
Homework gold shiny emblemImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-gold-shiny-emblem-373993261">Image used under license from Freestock.com</a>
A confident smiling salesman balancing on black wire in clear grey empty space conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/confident-smiling-salesman-balancing-black-wire-367077776">Image used under license from Freestock.com</a>
Homework shiny badgeImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-shiny-badge-387245926">Image used under license from Freestock.com</a>
A confident businessman with briefcase walking forward on drawn lines, cables in empty grey  space conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/confident-businessman-briefcase-walking-forward-drawn-360371951">Image used under license from Freestock.com</a>
A young office worker sitting at desk working with keyboard, papers, highliter in front of empty clear background wall conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-office-worker-sitting-desk-working-396535399">Image used under license from Freestock.com</a>
Innovation rubber sealImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/innovation-rubber-seal-367885463">Image used under license from Freestock.com</a>
Homework rubber textureImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-rubber-texture-376657636">Image used under license from Freestock.com</a>
An intelligent elegant business person sitting at a desk and working with drawn empty text bubbles, boxes around him conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/intelligent-elegant-business-person-sitting-desk-396535492">Image used under license from Freestock.com</a>
City scape, tall buildings and clouds on clear blue sky with business person balancing on black rope conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/city-scape-tall-buildings-clouds-clear-360372182">Image used under license from Freestock.com</a>
Businessman pulling huge rock with a rope concept on backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/businessman-pulling-huge-rock-rope-concept-344975627">Image used under license from Freestock.com</a>
Innovation on chalkboardImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/innovation-chalkboard-367868906">Image used under license from Freestock.com</a>
An elegan businessman in suit balancing on a tight rope with a briefcase in front of grey urban wall background environment conceptImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/elegan-businessman-suit-balancing-tight-rope-344824250">Image used under license from Freestock.com</a>
Homework gold badge or emblemImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/homework-gold-badge-emblem-359677799">Image used under license from Freestock.com</a>
A young businessman sitting at an office desk and working on paperwork with drawn arrows pointing at his head concept Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/young-businessman-sitting-office-desk-working-363192416">Image used under license from Freestock.com</a>
Businessman pulling huge rock with a rope concept on backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/businessman-pulling-huge-rock-rope-concept-339785897">Image used under license from Freestock.com</a>