Problem Stock Footage Video ~ Royality Free 4K and FHD Clips | Knot9

Hardworking college girl studying for a class test during lunchtime in the campus

Cute Indian student smiling and showing a thumbs up while working on her laptop

Young college students preparing for their final semester exams - education concept

Group of four young students studying together in the open-air - college scene

Group of Indian teenagers studying together using books and laptop - college life

Smoke emission from a factory polluting environment in India - air pollution concept

A burning garbage dump polluting harmful smoke in the environment - air pollution

Air pollution from burning household waste on the sides of a road - bad ecology concept

A burning garbage dump polluting the environment by producing harmful smoke - global warming

Harmful smoke coming out from an industrial chimney pipe causing air pollution

Smoke emission from factory pipes contaminating fresh air in an industrial area

Factory chimney smoking heavy smoke in the cloudy sky - air pollution concept

Indian lady reads a book with glasses while sitting in bed - the lifestyle of old people

Indian teenager studying hard for his upcoming semester exams - education concept

Indian father helping out his college-going son in solving maths problems - Family in India

Indian middle-aged businessman having terrible shoulder pain while sitting on a couch

Young Indian girl using an inhaler for asthma and other respiratory diseases

Young asthma patient using a medical spray to treat asthma attack against the white background

Little Indian girl is coughing against the white background - health care concept

Stressed Indian couple sitting on the floor in their drawing room - Concerned about their financial condition

Indian woman viewing her reflection and upsets about her physique - health concept

Overweight Indian woman desiring to wear her dress - obesity concept

Young couple fighting outdoor in a park, boy taking out frustration on his girlfriend

Young couple sitting together in the park using their cell phones on a bright sunny day