A gloved hand collects water into a test tube. Sampling from open water. Scientist or biologist takes a sample of water in a test tube
Related tags:
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- biologist
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- biotechnology
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- water pollution
- lake
- river
- water hand
- river water
- environmental pollution
- science experiment
- water nature
- research
- environment
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- dirty hands
- environment ecology
- 4k
- ppe
