Вчений або біолог носить захисну форму, вивчаючи вміст рідини в пробірці. Концепція екології та забруднення навколишнього середовища . - Стокове фото та зображення

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

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

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

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.

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

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

Chemist on river bank with test tube and water in hands

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

Woman collects water in a test tube. Ecology and environmental pollution concept.

Hand in glove collects water in a test tube.

Hand in glove collects water in a test tube.

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

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

Woman collects water in a test tube. Ecology and environmental pollution concept.

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

Hand in glove collects water in a test tube.