Scatole di lettiera. Quattro adolescenti in t-shirt bianche che tengono scatole con diversi tipi di lettiera dopo la selezione - Foto e immagini stock

Box with waste. Dark-skinned cheerful teenager holding box with organic waste after sorting with friends

African-American teenager. Beaming African-American teenager feeling satisfied after sorting waste with friends

Box with glass. Handsome dark-eyed teenager holding box with glass bottles after sorting with best friends

Box with plastic. Curly girl in white t-shirt holding box with plastic after sorting waste with friends

Box with paper. Dark-skinned teenager wearing squared shirt holding box with paper after sorting

Teenager holding box. Dark-skinned teenager in glasses holding box with paper while sorting waste with friends

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

Ecology protectors. A team of volunteers at work looking confident

Funny kids. Pretty young ecology teacher sitting at the table and laughing together with her students while they cracking jokes after the class

Happy moments. Cheerful boy keeping smile on his face while laughing at joke with his friend

Thankful teacher. Blonde-haired teacher wearing denim shirt feeling thankful to her students participating in volunteering

Girl with friends. Dark-haired beautiful stylish girl standing with her friends while volunteering in forest

Thumbs up. Company of young active beaming volunteers raising their thumbs up with their team leader after cleaning the beach

Green forest. Team of active and young volunteers feeling amazing while working together in green forest

Process of work. Blonde-haired team leader of young volunteers feeling cheerful while organizing the process of work

Involved pupils. Smiling young pupils feeling extremely cheerful and involved in cleaning up the forest and volunteering