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    Rear view of a young African schoolchildren raising their hands to answer a question to the female teacher standing at the front of the class by the blackboard during a lesson in a township elementary school classroom — Stock Photo
    Rear view of a young African schoolchildren raising their hands to answer a question to the female teacher standing at the front of the class by the blackboard during a lesson in a township elementary school classroom
    Side view close up of a young African schoolboy sitting at his desk and turning around, looking to camera and smiling during a lesson in a township elementary school classroom. — Stock Photo
    Side view close up of a young African schoolboy sitting at his desk and turning around, looking to camera and smiling during a lesson in a township elementary school classroom.
    Friends discussing notes — Stock Photo
    Friends discussing notes
    Young person seated working at a terminal — Stock Photo
    Young person seated working at a terminal
    Young elegant woman in eyeglasses leaning on stone wall and reading book — Stock Photo
    Young elegant woman in eyeglasses leaning on stone wall and reading book
    Children using digital tablet — Stock Photo
    Children using digital tablet
    Front view of a teenage Caucasian boy and a teenage African American girl in a high school classroom sitting a desk, using a tablet computer, with teenage classmates sitting at desks working in the background — Stock Photo
    Front view of a teenage Caucasian boy and a teenage African American girl in a high school classroom sitting a desk, using a tablet computer, with teenage classmates sitting at desks working in the background
    Top view of a woman working from home with her laptop — Stock Photo
    Top view of a woman working from home with her laptop
    University student using laptop — Stock Photo
    University student using laptop
    Portrait of university student sitting at desk with hand on chin — Stock Photo
    Portrait of university student sitting at desk with hand on chin
    Portrait confident young male college student studying in cafe — Stock Photo
    Portrait confident young male college student studying in cafe
    Multi ethnic group of elementary school children sitting at desks wearing face masks in classroom. Primary education social distancing health safety during Covid19 Coronavirus pandemic. — Stock Photo
    Multi ethnic group of elementary school children sitting at desks wearing face masks in classroom. Primary education social distancing health safety during Covid19 Coronavirus pandemic.
    Girl writing with a pen on a board — Stock Photo
    Girl writing with a pen on a board
    Beautiful young woman making notes at home — Stock Photo
    Beautiful young woman making notes at home
    Young female college student studying — Stock Photo
    Young female college student studying
    Male teacher using laptop with students in the classroom at school — Stock Photo
    Male teacher using laptop with students in the classroom at school
    Schoolgirl in class turning head around — Stock Photo
    Schoolgirl in class turning head around
    Hand holding green book — Stock Photo
    Hand holding green book
    Portrait of young female archaeologist using and looking in microscope in laboratory. — Stock Photo
    Portrait of young female archaeologist using and looking in microscope in laboratory.
    Side view mid section of a mixed race teenage schoolgirl sitting at a desk in class using a laptop computer — Stock Photo
    Side view mid section of a mixed race teenage schoolgirl sitting at a desk in class using a laptop computer
    Side view close up of a teenage mixed-race boy in a school classroom sitting at desk, concentrating, with teenage male and female classmates sitting at desks working in the background — Stock Photo
    Side view close up of a teenage mixed-race boy in a school classroom sitting at desk, concentrating, with teenage male and female classmates sitting at desks working in the background
    Close-up of examination of soil samples in agrochemical laboratory. — Stock Photo
    Close-up of examination of soil samples in agrochemical laboratory.
    Focused junior high school student using highlighter, doing homework in classroom — Stock Photo
    Focused junior high school student using highlighter, doing homework in classroom
    Student reading book in college library — Stock Photo
    Student reading book in college library
    Front view of a Caucasian male high school teacher, standing and talking with a teenage Caucasian girl in a school classroom sitting at desk, with teenage classmates sitting at desks working in the background — Stock Photo
    Front view of a Caucasian male high school teacher, standing and talking with a teenage Caucasian girl in a school classroom sitting at desk, with teenage classmates sitting at desks working in the background
    Female scientist measuring PH of soil samples with litmus strips. — Stock Photo
    Female scientist measuring PH of soil samples with litmus strips.
    Portrait of confident junior high school student doing homework in classroom — Stock Photo
    Portrait of confident junior high school student doing homework in classroom
    Front view of a young mixed race female fashion student working on a design in a studio at fashion college — Stock Photo
    Front view of a young mixed race female fashion student working on a design in a studio at fashion college
    Female teacher teaching class — Stock Photo
    Female teacher teaching class
    College students studying together in classroom — Stock Photo
    College students studying together in classroom
    Side view of redhead female freelancer in yellow sheets working with laptop lying on bed — Stock Photo
    Side view of redhead female freelancer in yellow sheets working with laptop lying on bed
    Rural female teacher looking at chinese pupil in classroom — Stock Photo
    Rural female teacher looking at chinese pupil in classroom
    Young boy at home looking at a laptop screen, and writing in a notebook. — Stock Photo
    Young boy at home looking at a laptop screen, and writing in a notebook.
    Portrait close up of a Caucasian teenage boy with dark hair and grey eyes sitting at a desk in a school classroom wearing headphones around his neck, smiling to camera — Stock Photo
    Portrait close up of a Caucasian teenage boy with dark hair and grey eyes sitting at a desk in a school classroom wearing headphones around his neck, smiling to camera
    Side view of smiling students studying at desk in classroom — Stock Photo
    Side view of smiling students studying at desk in classroom
    Archaeologists analyzing ancient fishing weight artifacts. — Stock Photo
    Archaeologists analyzing ancient fishing weight artifacts.
    Group of multi ethnic kids sitting on their desk in the classroom at school with a Caucasian female teacher. Primary education social distancing health safety during Covid19 Coronavirus pandemic. — Stock Photo
    Group of multi ethnic kids sitting on their desk in the classroom at school with a Caucasian female teacher. Primary education social distancing health safety during Covid19 Coronavirus pandemic.
    College students studying together at home — Stock Photo
    College students studying together at home
    Smiling blonde little boy reading book on wooden floor — Stock Photo
    Smiling blonde little boy reading book on wooden floor
    Grandparents at dining table with grandchildren doing homework — Stock Photo
    Grandparents at dining table with grandchildren doing homework
    College students using laptop and digital tablet in classroom — Stock Photo
    College students using laptop and digital tablet in classroom
    Portrait confident businesswoman working, reviewing paperwork with feet up on desk — Stock Photo
    Portrait confident businesswoman working, reviewing paperwork with feet up on desk
    Close-up of female scientist taking notes in soil testing laboratory. — Stock Photo
    Close-up of female scientist taking notes in soil testing laboratory.
    Multi ethnic group of elementary school children looking at camera, wearing face masks in school hall. Primary education social distancing health safety during Covid19 Coronavirus pandemic. — Stock Photo
    Multi ethnic group of elementary school children looking at camera, wearing face masks in school hall. Primary education social distancing health safety during Covid19 Coronavirus pandemic.
    Cropped view of high school students studying at common room — Stock Photo
    Cropped view of high school students studying at common room
    Doctors holding and pointing at x-ray of human foot. — Stock Photo
    Doctors holding and pointing at x-ray of human foot.
    Front view close up of a young African schoolboy and schoolgirl sitting at a desk using a laptop computer together during a lesson in a township elementary school classroom, in the background classmates are sitting at their desks working — Stock Photo
    Front view close up of a young African schoolboy and schoolgirl sitting at a desk using a laptop computer together during a lesson in a township elementary school classroom, in the background classmates are sitting at their desks working
    Selective focus of Ballerino stretching on barre while practicing ballet dance in studio — Stock Photo
    Selective focus of Ballerino stretching on barre while practicing ballet dance in studio
    Smiling young woman with cup of coffee using laptop at kitchen counter at home — Stock Photo
    Smiling young woman with cup of coffee using laptop at kitchen counter at home
    Women looking at summer garden — Stock Photo
    Women looking at summer garden
    Creative young businessmen working at laptop — Stock Photo
    Creative young businessmen working at laptop
    Young male and female scientists working in laboratory. — Stock Photo
    Young male and female scientists working in laboratory.
    Young female college student roommates studying in apartment — Stock Photo
    Young female college student roommates studying in apartment
    Chinese man and woman using laptop in cafe — Stock Photo
    Chinese man and woman using laptop in cafe
    Boy holding a globe — Stock Photo
    Boy holding a globe
    Rear view close up of two young African schoolgirls sitting at their desk whispering to each other during a lesson in a township elementary school classroom — Stock Photo
    Rear view close up of two young African schoolgirls sitting at their desk whispering to each other during a lesson in a township elementary school classroom
    Smiling senior woman studying in adult education classroom — Stock Photo
    Smiling senior woman studying in adult education classroom
    Female scientist in laboratory looking at glass flask with dissolved samples of soil. — Stock Photo
    Female scientist in laboratory looking at glass flask with dissolved samples of soil.
    Front view close up of a young Asian female student wearing a hijab reading a book, using a laptop computer and studying in a library — Stock Photo
    Front view close up of a young Asian female student wearing a hijab reading a book, using a laptop computer and studying in a library
    Teacher assisting students in experiment on molecule in laboratory — Stock Photo
    Teacher assisting students in experiment on molecule in laboratory