Segítő barát. Sötét bőrű tinédzser a fülhallgató a nyak segíti a barátja válogatás üveg és műanyag - Stock fotó és kép

Sorting waste together. Curly girl joining her handsome dark-haired best friend while sorting waste together

Teenagers sorting plastic. Active teenagers in white t-shirts sorting plastic while taking care of nature and planet

Glass bottles. Handsome teenager wearing white t-shirt smiling while sorting glass with his friend

Active teenagers. Three active and responsible teenagers separating paper from plastic while sorting waste

Plastic bottle. Dark-skinned teenager with earphones on neck holding big plastic bottle standing near friend

In white t-shirts. Active good-looking volunteers wearing white t-shirts sorting litter together

Putting glass bottles. Dark-skinned friend putting glass bottles in box sorting waste with his best friend

Teenager laughing. Dark-skinned teenager laughing while sorting waste with his best friend

Before examination. Three stylish modern students revising info before final examination

Happy experimenter. Cheerful teenage boy showing a set of test tubes to his female classmate and smiling at her widely while she adding chemical to another tube

Effective brainstorming. Pleasant teenage schoolchildren thinking about chemistry project ideas during the class while the boy resting his hands on the big flask with red liquid

Important discussion. Charming teenage boy holding a big flask with a red liquid and talking with his team member during chemistry class

Pole bear. Smiling pretty girl holding a picture in a nahd while standing in a classroom

Hard-working little boy. Diligent short-haired boy training with special equipment while having problems with body functioning

Important question. Pleasant teenage male student raising a hand and asking his teacher a question while she and his classmates conducting a common chemical experiment

Team of cleaners in overalls and rubber gloves work in a coworking area, women use a mop, buckets, rags