Topic 3: Introduction to Earth’s Atmosphere. General Introduction: - Earth’s Atmosphere - Importance of the Atmosphere Composition of the Atmosphere: - Common Atmospheric Gases - Greenhouse Gases - Atmospheric Particulates. Topic 2: Introduction to Earth’s Atmosphere.By cyrus-tyson
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MONTREAL PROTOCOL ON SUBSTANCES THAT DEPLETE THE OZONE LAYER. Introduction. The ozone layer is destroyed by ozone-depleting substances (ODS) when those chemicals are released into the atmosphere and then react with the ozone molecules.
Climate ‘fix’ could deplete ozone. Unit 3 Ideas in Context P7(H) Paper Paul Kerr The Derby High School, Bury. What is climate and weather?. Climate – average weather conditions over a period of at least 30 years.
Ozone Layer. O 3 Absorbs the sun’s UV radiation Stratosphere 20-50km above the Earth’s surface. Ultraviolet Radiation. Good: Causes Vitamin D production in humans Bad: Causes skin cancer, cataracts, and mutations, blindness, sunburn. Severe crop damage
Ozone Layer. CFCs- Chlorofluorocarbons. They are used in the manufacture of aerosol sprays, blowing agents for foams and packing materials, as solvents, and as refrigerants. .
Ozone Layer Depletion. Ms. Pride Regents Biology Human Impact Presentation. Ozone and the Ozone Layer. Ozone (O 3 ) : The ozone layer is a layer of the upper atmosphere that blocks out harmful UV rays. Between 20 and 50 kilometers above the Earth’s surface
Ozone Layer Depletion. Ozone in the Stratosphere. 平流層的臭氧 (O 3 ) 阻檔有害的紫外線 (UV) 保護地球上的生物是好的臭氧 對流層 ( 地面附近 ) 的臭氧是光化學煙霧的重要成份是壞的臭氧. Source: http://www.esrl.noaa.gov/csd/assessments/ozone/2006/chapters/twentyquestions.pdf. 臭氧柱 (ozone column) 的濃度單位 Dobson Unit (D.U.).
The Ozone Layer. Today’s Lesson. The Ozone Layer Gases Activity. Ozone. Ozone is quite an interesting thing, it’s basically three Oxygen atoms bonded together. It’s main use is to absorb UV rays found in outer space to make life habitable.
The Ozone Layer. Importance. Ozone, O 3 , shields the earth’s surface from biologically harmful UV-B radiation, which damages the genetic information in the DNA of all living cells.
THE OZONE LAYER. What is it? Where is it? Why is it important to life on Earth? How are we as humans affecting it?. What is the ozone layer?. The ozone layer is a layer of gas consisting of O 3 molecules, called ozone, that forms when free Oxygen molecules bond to O 2 molecules. Ozone.