Samples of different types of soil sit in aluminum trays, waiting to be tested, at the Yale School of the Environment, New Haven, CT, USA

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Size: 3090px × 2130px
Location: New Haven, CT, USA
Photo credit: © Geoffrey Giller / Alamy / Afripics
License: Royalty Free
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Keywords: diversity, environment, environmental, fes, forestry, rich, sample, samples, school, science, soil, soils, studies, test, testing, tests, yale