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    Female scientist in white coat measuring PH of soil sample with litmus strips. — Stock Photo
    Female scientist in white coat measuring PH of soil sample with litmus strips.
    Illustration of Earth half normal and half without water. — Stock Photo
    Illustration of Earth half normal and half without water.
    Green litter bin on clean empty concrete sidewalk parapet of seaside on cloudy day — Stock Photo
    Green litter bin on clean empty concrete sidewalk parapet of seaside on cloudy day
    Old man working in pandemic quarantine — Stock Photo
    Old man working in pandemic quarantine
    Offshore operator inspects pipe and flange before instal — Stock Photo
    Offshore operator inspects pipe and flange before instal
    From above dirty paper sack with discarded plastic bottles placed on black background — Stock Photo
    From above dirty paper sack with discarded plastic bottles placed on black background
    Front view close up of a caucasian woman wearing face mask against air pollution and covid19 coronavirus, walking through the city streets, using her smartphone and holding a cup of takeaway coffee. — Stock Photo
    Front view close up of a caucasian woman wearing face mask against air pollution and covid19 coronavirus, walking through the city streets, using her smartphone and holding a cup of takeaway coffee.
    Senior Caucasian man out and about in the city streets during the day, putting on a face mask against coronavirus, covid 19. — Stock Photo
    Senior Caucasian man out and about in the city streets during the day, putting on a face mask against coronavirus, covid 19.
    Background of diverse colorful plastic packs — Stock Photo
    Background of diverse colorful plastic packs
    Volunteers cleaning up litter on sunny beach — Stock Photo
    Volunteers cleaning up litter on sunny beach
    Front view of a mixed race woman with long dark hair sitting at a table in a cafe during the day, wearing a face mask against air pollution and coronavirus, working on a laptop computer with buildings in the background. — Stock Photo
    Front view of a mixed race woman with long dark hair sitting at a table in a cafe during the day, wearing a face mask against air pollution and coronavirus, working on a laptop computer with buildings in the background.
    Side view of a mixed race woman with long dark hair out and about in the city streets during the day, wearing a face mask against air pollution and coronavirus, standing in a city street with buildings in the background. — Stock Photo
    Side view of a mixed race woman with long dark hair out and about in the city streets during the day, wearing a face mask against air pollution and coronavirus, standing in a city street with buildings in the background.
    Misaligned top view of various clear bottles with hydrochloric gel for filling serves to disinfect the hands of covid-19 — Stock Photo
    Misaligned top view of various clear bottles with hydrochloric gel for filling serves to disinfect the hands of covid-19
    Illustration of possible future Earth with riddled atmosphere of dust and pollution and dry surface. — Stock Photo
    Illustration of possible future Earth with riddled atmosphere of dust and pollution and dry surface.
    Portrait of a caucasian man with short dark hair, wearing casual clothes and face mask against air pollution and covid19 coronavirus, looking straight into a camera. — Stock Photo
    Portrait of a caucasian man with short dark hair, wearing casual clothes and face mask against air pollution and covid19 coronavirus, looking straight into a camera.