https://www.khanacademy.org/science/mh-grade-8-science/x0f256b8de9c7cf34:pollution/x0f256b8de9c7cf34:soil-pollution/v/soil-pollution 2025-11-03T05:50:51.879883785Z Soil Pollution Understand how pollutants disrupt soil health. Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Soil Pollution Understand how pollutants disrupt soil health. https://cdn.kastatic.org/ka-youtube-converted/YrABxgnzet4.mp4/YrABxgnzet4.mp4 390 Pollution https://www.khanacademy.org/science/odia-class-9-life-sciencesinnew/xe3c78ac26f338844:natural-resources-its-pollution/xe3c78ac26f338844:pollution/e/soil-pollution-in 2026-03-27T06:59:58.632106018Z Soil pollution To apply knowledge of soil pollution to assess examples and propose possible remedies. Swarnendu Koner exercise https://www.khanacademy.org/science/highschool-physics/x6679aa2c65c01e53:electromagnetic-radiation/x6679aa2c65c01e53:em-radiation-from-the-sun/v/the-_greenhouse_effect 2024-06-16T20:56:57.951759647Z The greenhouse effect Earth receives a spectrum of electromagnetic radiation from the Sun which peaks in the visible range. Some of this light makes it to Earth's surface and is absorbed. The absorbed light is converted to thermal vibrations of charged particles, which then radiate infrared light. Greenhouse gases in the atmosphere (including carbon dioxide, methane, and water vapor) absorb the infrared light and then re-emit it in random directions. Some escapes to space, and some remains trapped in the atmosphere. The greenhouse effect keeps Earth warm enough to be habitable. However, human activities are increasing greenhouse gas concentrations and are thereby affecting Earth's climate system. Solutions to this problem include solar, wind, and nuclear energy, which do not emit greenhouse gases during operation. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/4b17ace8-7bca-436f-a549-ed079209c44f_1280_720_base.png The greenhouse effect Earth receives a spectrum of electromagnetic radiation from the Sun which peaks in the visible range. Some of this light makes it to Earth's surface and is absorbed. The absorbed light is converted to thermal vibrations of charged particles, which then radiate infrared light. Greenhouse gases in the atmosphere (including carbon dioxide, methane, and water vapor) absorb the infrared light and then re-emit it in random directions. Some escapes to space, and some remains trapped in the atmosphere. The greenhouse effect keeps Earth warm enough to be habitable. However, human activities are increasing greenhouse gas concentrations and are thereby affecting Earth's climate system. Solutions to this problem include solar, wind, and nuclear energy, which do not emit greenhouse gases during operation. https://cdn.kastatic.org/ka-youtube-converted/Yn7ICU3Q4mE.mp4/Yn7ICU3Q4mE.mp4 808 Pollution https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:global-change/x0b0e430a38ebd23f:greenhouse-effect/e/greenhouse-effect 2025-12-18T00:30:56.558401705Z Greenhouse effect Apply your understanding of greenhouse effect in this set of free practice questions aligned to AP standards. exercise https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-4/x017c12e57b64cfa8:untitled-257/v/ozone-layer-and-how-it-gets-depleted 2023-09-14T11:22:40.102153098Z Ozone layer and how it gets depleted What exactly is ozone? How is it formed? And how does humanity destroy it? Let's find answers to all these questions in this video. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Ozone layer and how it gets depleted What exactly is ozone? How is it formed? And how does humanity destroy it? Let's find answers to all these questions in this video. https://cdn.kastatic.org/ka-youtube-converted/ZdmO6ORgTPg.mp4/ZdmO6ORgTPg.mp4 204 Pollution https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:global-change/x0b0e430a38ebd23f:ozone/e/ozone 2026-03-03T12:10:36.962309952Z Ozone depletion Check your understanding of ozone depletion in this set of free practice questions aligned to AP standards. exercise https://www.khanacademy.org/science/class-7-science/x0c8b40bd4b242f0b:sound/x0c8b40bd4b242f0b:noise-harmful-effects-and-control/a/noise-pollution 2024-12-28T13:04:23.933766206Z Noise Pollution Let's read on Noise pollution article https://www.khanacademy.org/science/class-7-science/x0c8b40bd4b242f0b:sound/x0c8b40bd4b242f0b:noise-harmful-effects-and-control/e/noise 2025-07-26T09:56:05.549447741Z Noise Let's solve some questions on noise! Vibhor Pandey exercise