{"id":23012,"date":"2024-04-15T06:28:01","date_gmt":"2024-04-15T06:28:01","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=23012"},"modified":"2024-04-15T06:28:01","modified_gmt":"2024-04-15T06:28:01","slug":"the-human-body-is-made-up-of-several-chemical-elements-the-element-present-in-the-highest-proportion-65-in-the-body-is-a-carbon-b-hydrogen-c-oxygen-d-nitrogen","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-human-body-is-made-up-of-several-chemical-elements-the-element-present-in-the-highest-proportion-65-in-the-body-is-a-carbon-b-hydrogen-c-oxygen-d-nitrogen\/","title":{"rendered":"The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is A. carbon B. hydrogen C. oxygen D. nitrogen"},"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_6a9a8b927bc81\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"true\">\r\n                    carbon                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    hydrogen                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    oxygen                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    nitrogen                <\/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: <strong>Oxygen<\/strong>.<\/p>\n<p>Oxygen is the most abundant element in the human body, making up about 65% of our body weight. It is found in water, which makes up about 60% of our body weight, and in the proteins, carbohydrates, and fats that make up our cells. Oxygen is essential for life, as it is used in cellular respiration to produce energy.<\/p>\n<p>Carbon is the second most abundant element in the human body, making up about 18% of our body weight. It is found in all organic compounds, including proteins, carbohydrates, and fats. Carbon is also found in the bones and teeth.<\/p>\n<p>Hydrogen is the third most abundant element in the human body, making up about 10% of our body weight. It is found in water and in organic compounds. Hydrogen is also found in the bones and teeth.<\/p>\n<p>Nitrogen is the fourth most abundant element in the human body, making up about 3% of our body weight. It is found in proteins and nucleic <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 42.9-11.4 132.3-11.4 132.3s0 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            <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> <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> acids. Nitrogen is also found in the bones and teeth.<\/p>\n<p>The remaining 4% of the human body is made up of a variety of other elements, including calcium, phosphorus, potassium, sulfur, sodium, chlorine, magnesium, iron, zinc, iodine, selenium, copper, fluorine, chromium, manganese, molybdenum, and cobalt. These elements are essential for life, as they are found in all living things.<\/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":[19],"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>The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is A. carbon B. hydrogen C. oxygen D. nitrogen<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/the-human-body-is-made-up-of-several-chemical-elements-the-element-present-in-the-highest-proportion-65-in-the-body-is-a-carbon-b-hydrogen-c-oxygen-d-nitrogen\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The human body is made up of several chemical elements; 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