Scientist is analysing and testing a water concept.
Schlüsselwörter
water,
pollution,
sample,
analysing,
expertise,
analysis,
scrutiny,
background,
test,
chemical,
quality,
control,
clean,
clear,
concept,
tube,
ampoule,
dirty,
ecology,
potable,
drinking,
environment,
exam,
exam,
experiment,
female,
flask,
hand,
holding,
inspector,
learn,
measure,
measuring,
nature,
research,
researching,
laboratory,
laboratory,
science,
testing,
scientist,
vessel,
liquid,
transparent,
bottle
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