Скачать с ютуб Stratospheric Ozone Depletion| Global change| AP Environmental Science| Khan Academy в хорошем качестве

Stratospheric Ozone Depletion| Global change| AP Environmental Science| Khan Academy

Keep going! Check out the next lesson and practice what you’re learning: https://www.khanacademy.org/science/a... Stratospheric ozone depletion is caused by anthropogenic factors, such as chlorofluorocarbons (CFC's), and natural factors, such as the melting of ice crystals in the atmosphere at the beginning of the Antarctic spring. Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate Volunteer here: https://www.khanacademy.org/contribute