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Ecologists working in dangerous area
Girl wearing lab coat and safety glasses transferring with pipette into Petri dish in school lab
In high school, teenager examining test tube in science classroom, wearing safety goggles
Young female ecologist holding sample of dirty water while looking at colleague
Housewife learning about tax return
Chemists taking samples outdoors
Biracial boy engages in a science experiment at school in the classroom
Biologist examining the area
Ecologist examining the nature
Biracial boy engages in a science experiment at school in the classroom
