{"id":22804,"date":"2024-04-15T06:25:17","date_gmt":"2024-04-15T06:25:17","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=22804"},"modified":"2024-04-15T06:25:17","modified_gmt":"2024-04-15T06:25:17","slug":"ozone-layer-in-the-outer-atmosphere-helps-us-in-a-reflecting-radio-waves-and-makes-radio-communication-possible-b-regulating-the-temperature-of-atmosphere-c-absorbing-cosmic-ray-particles-d-absorb","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/ozone-layer-in-the-outer-atmosphere-helps-us-in-a-reflecting-radio-waves-and-makes-radio-communication-possible-b-regulating-the-temperature-of-atmosphere-c-absorbing-cosmic-ray-particles-d-absorb\/","title":{"rendered":"Ozone layer in the outer atmosphere helps us in A. Reflecting radio waves and makes radio communication possible B. Regulating the temperature of atmosphere C. Absorbing cosmic ray particles D. Absorbing UV radiations"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6a9e7f091f12b\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    Reflecting radio waves and makes radio communication possible                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Regulating the temperature of atmosphere                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    Absorbing cosmic ray particles                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"true\">\r\n                    Absorbing UV radiations                <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is D. Absorbing UV radiations.<\/p>\n<p>The ozone layer is a region of Earth&#8217;s stratosphere that absorbs most of the Sun&#8217;s ultraviolet radiation. It contains high concentrations of ozone (O3) relative to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. The ozone layer contains less than 10 parts per million of ozone, while the average ozone concentration in Earth&#8217;s atmosphere as a whole is about 0.3 parts per million. The ozone layer is mainly found in the lower portion of the stratosphere, from approximately 20 to 30 kilometers (12 to 19 mi) above Earth, although its thickness varies seasonally and geographically.<\/p>\n<p>The ozone layer is important because it protects life on Earth from harmful ultraviolet radiation. Ultraviolet radiation can cause skin cancer and other health problems, as well as damage plants and animals. The ozone layer absorbs most of the Sun&#8217;s ultraviolet radiation, preventing it from reaching Earth&#8217;s surface.<\/p>\n<p>The ozone layer is constantly being created and destroyed. Ozone is created when oxygen molecules (O2) are split by ultraviolet radiation, and the resulting oxygen atoms (O) combine with other oxygen molecules to form ozone (O3). Ozone is destroyed when it reacts with other chemicals, such as chlorine and bromine.<\/p>\n<p>Human activities have been shown to contribute to the destruction of the ozone <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div> 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> layer. Chlorofluorocarbons (CFCs), which were once widely used in refrigerants and aerosol propellants, are one of the main causes of ozone depletion. CFCs are released into the atmosphere, where they break down and release chlorine atoms. These chlorine atoms react with ozone molecules, destroying them.<\/p>\n<p>The Montreal Protocol, an international treaty signed in 1987, has helped to reduce the amount of CFCs in the atmosphere. As a result, the ozone layer is slowly recovering. However, it is important to continue to protect the ozone layer by reducing our use of ozone-depleting substances.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Join Our Telegram Channel Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ozone layer in the outer atmosphere helps us in A. Reflecting radio waves and makes radio communication possible B. Regulating the temperature of atmosphere C. Absorbing cosmic ray particles D. 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