Női tudós az erdőben egy kémcsőbe folyékony tartalmának vizsgálata. Ökológia és a környezetszennyezés fogalma. - Stock fotó és kép

Hand in glove collects water in a test tube.

Scientist or biologist wearing protective uniforms examining the liquid contents of a test tube. Ecology and environmental pollution concept.

Scientists or biologists working together on water analysis. Ecology and environmental pollution concept.

Closeup of a female scientist examining the liquid contents of a conical flask in the forest. Ecology and environmental pollution concept.

Scientist or biologist wearing protective uniforms examining the liquid contents of a test tube. Ecology and environmental pollution concept.

Closeup of a female scientist examining the liquid contents of flask in the forest. Ecology and environmental pollution concept.

Ecologist working together on on dirty beach of the lake. Ecology and people concept.

Female scientist examining the liquid contents of a test tube in the forest. Ecology and environmental pollution concept.