{"id":88899,"date":"2025-06-01T07:24:25","date_gmt":"2025-06-01T07:24:25","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88899"},"modified":"2025-06-01T07:24:25","modified_gmt":"2025-06-01T07:24:25","slug":"which-of-the-following-statements-is-are-correct-1-the-earths-cru","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-is-are-correct-1-the-earths-cru\/","title":{"rendered":"Which of the following statements is\/are correct?\n  1. The Earth&#8217;s cru"},"content":{"rendered":"<p>Which of the following statements is\/are correct?<\/p>\n<ul>\n<li>1. The Earth&#8217;s crust is brittle in nature.<\/li>\n<li>2. The mean thickness of the oceanic crust is 15 km whereas that of the continental crust is around 30 km.<\/li>\n<\/ul>\n<p>Select the correct answer using the code given below.<\/p>\n<p>[amp_mcq option1=&#8221;1 only&#8221; option2=&#8221;2 only&#8221; option3=&#8221;Both 1 and 2&#8243; option4=&#8221;Neither 1 nor 2&#8243; correct=&#8221;option1&#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 NDA-2 &#8211; 2022<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-nda-2-2022.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-nda-2-2022\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">Let&#8217;s analyze each statement:<br \/>\n1. The Earth&#8217;s crust is brittle in nature: This statement is correct. The upper part of the Earth&#8217;s crust behaves in a brittle manner, meaning it tends to break and fracture under stress rather than deform plastically. This brittle behavior is responsible for phenomena like faulting and earthquakes.<br \/>\n2. The mean thickness of the oceanic crust is 15 km whereas that of the continental crust is around 30 km: This statement is incorrect. The oceanic crust is significantly thinner than the continental crust. The mean thickness of the oceanic crust is typically around 5-10 km, while the mean thickness of the continental crust is around 30-40 km (and can be up to 70 km under major mountain ranges).<\/section>\n<section id=\"pyq-key-points\">The Earth&#8217;s crust is the outermost solid shell of the planet and exhibits brittle characteristics, particularly near the surface. Oceanic and continental crusts differ significantly in their thickness and composition.<\/section>\n<section id=\"pyq-additional-information\">The oceanic crust is primarily composed of basalt and gabbro and is denser than the continental crust, which is mainly composed of granitic and andesitic rocks. This difference in density and thickness is fundamental to plate tectonics and the formation of Earth&#8217;s surface features.<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Which of the following statements is\/are correct? 1. The Earth&#8217;s crust is brittle in nature. 2. The mean thickness of the oceanic crust is 15 km whereas that of the continental crust is around 30 km. Select the correct answer using the code given below. [amp_mcq option1=&#8221;1 only&#8221; option2=&#8221;2 only&#8221; option3=&#8221;Both 1 and 2&#8243; option4=&#8221;Neither &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Which of the following statements is\/are correct?\n  1. The Earth&#8217;s cru\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-is-are-correct-1-the-earths-cru\/#more-88899\">Detailed Solution<span class=\"screen-reader-text\">Which of the following statements is\/are correct?<br \/>\n  1. The Earth&#8217;s cru<\/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":[1094],"tags":[1108,1150,1106],"class_list":["post-88899","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1108","tag-the-earth","tag-world-and-physical-geography","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>Which of the following statements is\/are correct?  1. The Earth&#039;s cru<\/title>\n<meta name=\"description\" content=\"Let&#039;s analyze each statement: 1. The Earth&#039;s crust is brittle in nature: This statement is correct. The upper part of the Earth&#039;s crust behaves in a brittle manner, meaning it tends to break and fracture under stress rather than deform plastically. This brittle behavior is responsible for phenomena like faulting and earthquakes. 2. The mean thickness of the oceanic crust is 15 km whereas that of the continental crust is around 30 km: This statement is incorrect. The oceanic crust is significantly thinner than the continental crust. The mean thickness of the oceanic crust is typically around 5-10 km, while the mean thickness of the continental crust is around 30-40 km (and can be up to 70 km under major mountain ranges). The Earth&#039;s crust is the outermost solid shell of the planet and exhibits brittle characteristics, particularly near the surface. Oceanic and continental crusts differ significantly in their thickness and composition.\" \/>\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\/which-of-the-following-statements-is-are-correct-1-the-earths-cru\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which of the following statements is\/are correct?  1. The Earth&#039;s cru\" \/>\n<meta property=\"og:description\" content=\"Let&#039;s analyze each statement: 1. The Earth&#039;s crust is brittle in nature: This statement is correct. The upper part of the Earth&#039;s crust behaves in a brittle manner, meaning it tends to break and fracture under stress rather than deform plastically. This brittle behavior is responsible for phenomena like faulting and earthquakes. 2. The mean thickness of the oceanic crust is 15 km whereas that of the continental crust is around 30 km: This statement is incorrect. The oceanic crust is significantly thinner than the continental crust. The mean thickness of the oceanic crust is typically around 5-10 km, while the mean thickness of the continental crust is around 30-40 km (and can be up to 70 km under major mountain ranges). The Earth&#039;s crust is the outermost solid shell of the planet and exhibits brittle characteristics, particularly near the surface. Oceanic and continental crusts differ significantly in their thickness and composition.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-is-are-correct-1-the-earths-cru\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T07:24:25+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":"Which of the following statements is\/are correct?  1. The Earth's cru","description":"Let's analyze each statement: 1. The Earth's crust is brittle in nature: This statement is correct. The upper part of the Earth's crust behaves in a brittle manner, meaning it tends to break and fracture under stress rather than deform plastically. This brittle behavior is responsible for phenomena like faulting and earthquakes. 2. The mean thickness of the oceanic crust is 15 km whereas that of the continental crust is around 30 km: This statement is incorrect. The oceanic crust is significantly thinner than the continental crust. The mean thickness of the oceanic crust is typically around 5-10 km, while the mean thickness of the continental crust is around 30-40 km (and can be up to 70 km under major mountain ranges). The Earth's crust is the outermost solid shell of the planet and exhibits brittle characteristics, particularly near the surface. Oceanic and continental crusts differ significantly in their thickness and composition.","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\/which-of-the-following-statements-is-are-correct-1-the-earths-cru\/","og_locale":"en_US","og_type":"article","og_title":"Which of the following statements is\/are correct?  1. The Earth's cru","og_description":"Let's analyze each statement: 1. The Earth's crust is brittle in nature: This statement is correct. The upper part of the Earth's crust behaves in a brittle manner, meaning it tends to break and fracture under stress rather than deform plastically. This brittle behavior is responsible for phenomena like faulting and earthquakes. 2. The mean thickness of the oceanic crust is 15 km whereas that of the continental crust is around 30 km: This statement is incorrect. The oceanic crust is significantly thinner than the continental crust. The mean thickness of the oceanic crust is typically around 5-10 km, while the mean thickness of the continental crust is around 30-40 km (and can be up to 70 km under major mountain ranges). The Earth's crust is the outermost solid shell of the planet and exhibits brittle characteristics, particularly near the surface. Oceanic and continental crusts differ significantly in their thickness and composition.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-is-are-correct-1-the-earths-cru\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T07:24:25+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\/which-of-the-following-statements-is-are-correct-1-the-earths-cru\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-is-are-correct-1-the-earths-cru\/","name":"Which of the following statements is\/are correct? 1. The Earth's cru","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T07:24:25+00:00","dateModified":"2025-06-01T07:24:25+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Let's analyze each statement: 1. The Earth's crust is brittle in nature: This statement is correct. The upper part of the Earth's crust behaves in a brittle manner, meaning it tends to break and fracture under stress rather than deform plastically. This brittle behavior is responsible for phenomena like faulting and earthquakes. 2. The mean thickness of the oceanic crust is 15 km whereas that of the continental crust is around 30 km: This statement is incorrect. The oceanic crust is significantly thinner than the continental crust. The mean thickness of the oceanic crust is typically around 5-10 km, while the mean thickness of the continental crust is around 30-40 km (and can be up to 70 km under major mountain ranges). The Earth's crust is the outermost solid shell of the planet and exhibits brittle characteristics, particularly near the surface. Oceanic and continental crusts differ significantly in their thickness and composition.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-is-are-correct-1-the-earths-cru\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-is-are-correct-1-the-earths-cru\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-is-are-correct-1-the-earths-cru\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC NDA-2","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-nda-2\/"},{"@type":"ListItem","position":3,"name":"Which of the following statements is\/are correct? 1. 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