{"id":91926,"date":"2025-06-01T11:09:22","date_gmt":"2025-06-01T11:09:22","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=91926"},"modified":"2025-06-01T11:09:22","modified_gmt":"2025-06-01T11:09:22","slug":"consider-the-following-statements-other-than-those-made-by-humans","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-other-than-those-made-by-humans\/","title":{"rendered":"Consider the following statements :\n  Other than those made by humans,"},"content":{"rendered":"<p>Consider the following statements :<\/p>\n<ul>\n<li>Other than those made by humans, nanoparticles do not exist in nature.<\/li>\n<li>Nanoparticles of some metallic oxides are used in the manufacture of some cosmetics.<\/li>\n<li>Nanoparticles of some commercial products which enter the environment are unsafe for humans.<\/li>\n<\/ul>\n<p>Which of the statements given above is\/are correct ?<\/p>\n<p>[amp_mcq option1=&#8221;1 only&#8221; option2=&#8221;3 only&#8221; option3=&#8221;1 and 2&#8243; option4=&#8221;2 and 3&#8243; correct=&#8221;option4&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC IAS &#8211; 2022<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-ias-2022.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-ias-2022\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nThe correct answer is D) 2 and 3.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nStatement 1 is incorrect. Nanoparticles occur widely in nature, resulting from various natural processes such as volcanic eruptions, forest fires, sea spray, and even biological processes (e.g., formation of magnetite crystals in bacteria).<br \/>\nStatement 2 is correct. Nanoparticles of metallic oxides, such as titanium dioxide (TiO\u2082) and zinc oxide (ZnO), are commonly used in cosmetics, particularly in sunscreens, due to their ability to absorb and scatter UV light.<br \/>\nStatement 3 is correct. There are ongoing concerns about the potential environmental and health risks associated with nanoparticles from commercial products entering the environment, due to their small size, high surface area, and unique properties which can lead to different biological interactions and potential accumulation in tissues.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nResearch on the safety and environmental impact of manufactured nanoparticles is an active area of study. Regulatory bodies are developing guidelines and assessments for products containing nanomaterials.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Consider the following statements : Other than those made by humans, nanoparticles do not exist in nature. Nanoparticles of some metallic oxides are used in the manufacture of some cosmetics. Nanoparticles of some commercial products which enter the environment are unsafe for humans. Which of the statements given above is\/are correct ? [amp_mcq option1=&#8221;1 only&#8221; &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Consider the following statements :\n  Other than those made by humans,\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-other-than-those-made-by-humans\/#more-91926\">Detailed Solution<span class=\"screen-reader-text\">Consider the following statements :<br \/>\n  Other than those made by humans,<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1092],"tags":[1108,1136,1137],"class_list":["post-91926","post","type-post","status-publish","format-standard","hentry","category-upsc-ias","tag-1108","tag-environment-and-ecology","tag-pollution","no-featured-image-padding"],"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>Consider the following statements :  Other than those made by humans,<\/title>\n<meta name=\"description\" content=\"The correct answer is D) 2 and 3. Statement 1 is incorrect. Nanoparticles occur widely in nature, resulting from various natural processes such as volcanic eruptions, forest fires, sea spray, and even biological processes (e.g., formation of magnetite crystals in bacteria). Statement 2 is correct. Nanoparticles of metallic oxides, such as titanium dioxide (TiO\u2082) and zinc oxide (ZnO), are commonly used in cosmetics, particularly in sunscreens, due to their ability to absorb and scatter UV light. Statement 3 is correct. There are ongoing concerns about the potential environmental and health risks associated with nanoparticles from commercial products entering the environment, due to their small size, high surface area, and unique properties which can lead to different biological interactions and potential accumulation in tissues.\" \/>\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\/consider-the-following-statements-other-than-those-made-by-humans\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Consider the following statements :  Other than those made by humans,\" \/>\n<meta property=\"og:description\" content=\"The correct answer is D) 2 and 3. Statement 1 is incorrect. Nanoparticles occur widely in nature, resulting from various natural processes such as volcanic eruptions, forest fires, sea spray, and even biological processes (e.g., formation of magnetite crystals in bacteria). Statement 2 is correct. Nanoparticles of metallic oxides, such as titanium dioxide (TiO\u2082) and zinc oxide (ZnO), are commonly used in cosmetics, particularly in sunscreens, due to their ability to absorb and scatter UV light. Statement 3 is correct. There are ongoing concerns about the potential environmental and health risks associated with nanoparticles from commercial products entering the environment, due to their small size, high surface area, and unique properties which can lead to different biological interactions and potential accumulation in tissues.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-other-than-those-made-by-humans\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T11:09:22+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Consider the following statements :  Other than those made by humans,","description":"The correct answer is D) 2 and 3. Statement 1 is incorrect. Nanoparticles occur widely in nature, resulting from various natural processes such as volcanic eruptions, forest fires, sea spray, and even biological processes (e.g., formation of magnetite crystals in bacteria). Statement 2 is correct. Nanoparticles of metallic oxides, such as titanium dioxide (TiO\u2082) and zinc oxide (ZnO), are commonly used in cosmetics, particularly in sunscreens, due to their ability to absorb and scatter UV light. Statement 3 is correct. There are ongoing concerns about the potential environmental and health risks associated with nanoparticles from commercial products entering the environment, due to their small size, high surface area, and unique properties which can lead to different biological interactions and potential accumulation in tissues.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-other-than-those-made-by-humans\/","og_locale":"en_US","og_type":"article","og_title":"Consider the following statements :  Other than those made by humans,","og_description":"The correct answer is D) 2 and 3. Statement 1 is incorrect. Nanoparticles occur widely in nature, resulting from various natural processes such as volcanic eruptions, forest fires, sea spray, and even biological processes (e.g., formation of magnetite crystals in bacteria). Statement 2 is correct. Nanoparticles of metallic oxides, such as titanium dioxide (TiO\u2082) and zinc oxide (ZnO), are commonly used in cosmetics, particularly in sunscreens, due to their ability to absorb and scatter UV light. Statement 3 is correct. There are ongoing concerns about the potential environmental and health risks associated with nanoparticles from commercial products entering the environment, due to their small size, high surface area, and unique properties which can lead to different biological interactions and potential accumulation in tissues.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-other-than-those-made-by-humans\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T11:09:22+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-other-than-those-made-by-humans\/","url":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-other-than-those-made-by-humans\/","name":"Consider the following statements : Other than those made by humans,","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T11:09:22+00:00","dateModified":"2025-06-01T11:09:22+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct answer is D) 2 and 3. Statement 1 is incorrect. Nanoparticles occur widely in nature, resulting from various natural processes such as volcanic eruptions, forest fires, sea spray, and even biological processes (e.g., formation of magnetite crystals in bacteria). Statement 2 is correct. Nanoparticles of metallic oxides, such as titanium dioxide (TiO\u2082) and zinc oxide (ZnO), are commonly used in cosmetics, particularly in sunscreens, due to their ability to absorb and scatter UV light. Statement 3 is correct. There are ongoing concerns about the potential environmental and health risks associated with nanoparticles from commercial products entering the environment, due to their small size, high surface area, and unique properties which can lead to different biological interactions and potential accumulation in tissues.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-other-than-those-made-by-humans\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-other-than-those-made-by-humans\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-other-than-those-made-by-humans\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC IAS","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-ias\/"},{"@type":"ListItem","position":3,"name":"Consider the following statements : Other than those made by humans,"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/91926","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=91926"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/91926\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=91926"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=91926"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=91926"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}