{"id":88051,"date":"2025-06-01T07:00:28","date_gmt":"2025-06-01T07:00:28","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88051"},"modified":"2025-06-01T07:00:28","modified_gmt":"2025-06-01T07:00:28","slug":"which-of-the-following-statements-regarding-barchan-is-are-correct","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-regarding-barchan-is-are-correct\/","title":{"rendered":"Which of the following statements regarding Barchan is\/are correct ?"},"content":{"rendered":"<p>Which of the following statements regarding Barchan is\/are correct ?<\/p>\n<ul>\n<li>1. It is a crescent shaped mound of sand, which is deposited by the wind blowing constantly from one direction in a desert.<\/li>\n<li>2. The windward side has a convex steep slope with maximum height at the centre.<\/li>\n<li>3. Two ends of Barchan are called horns and point opposite to the direction the wind blows.<\/li>\n<\/ul>\n<p>Select the answer using the code given below :<\/p>\n<p>[amp_mcq option1=&#8221;1 only&#8221; option2=&#8221;1 and 2 only&#8221; option3=&#8221;2 and 3 only&#8221; option4=&#8221;1, 2 and 3&#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-1 &#8211; 2024<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-nda-1-2024.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-nda-1-2024\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nStatement 1 is correct. A Barchan is indeed a crescent-shaped sand dune formed by wind blowing predominantly from one direction in a desert environment.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nBarchans are one of the most common types of sand dunes. Their shape is a direct result of unidirectional wind flow and limited sand supply.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nStatement 2 is incorrect. The windward side of a barchan dune has a gentle, convex slope where sand is pushed up by the wind. The leeward side, also known as the slip face, has a much steeper, concave slope (close to the angle of repose for sand, around 30-34 degrees) where sand avalanches down. The maximum height is at the crest, just before the slip face.<br \/>\nStatement 3 is incorrect. The two ends of the crescent shape are called horns. These horns point downwind, in the direction that the wind is blowing, because the sand moves faster around the edges of the dune than at the center. They point *in* the direction of the wind flow, not opposite to it.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Which of the following statements regarding Barchan is\/are correct ? 1. It is a crescent shaped mound of sand, which is deposited by the wind blowing constantly from one direction in a desert. 2. The windward side has a convex steep slope with maximum height at the centre. 3. Two ends of Barchan are called &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Which of the following statements regarding Barchan is\/are correct ?\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-regarding-barchan-is-are-correct\/#more-88051\">Detailed Solution<span class=\"screen-reader-text\">Which of the following statements regarding Barchan is\/are correct ?<\/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":[1093],"tags":[1103,1336,1106],"class_list":["post-88051","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1103","tag-arid-region-desert","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 regarding Barchan is\/are correct ?<\/title>\n<meta name=\"description\" content=\"Statement 1 is correct. 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A Barchan is indeed a crescent-shaped sand dune formed by wind blowing predominantly from one direction in a desert environment. Barchans are one of the most common types of sand dunes. Their shape is a direct result of unidirectional wind flow and limited sand supply.","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-regarding-barchan-is-are-correct\/","og_locale":"en_US","og_type":"article","og_title":"Which of the following statements regarding Barchan is\/are correct ?","og_description":"Statement 1 is correct. A Barchan is indeed a crescent-shaped sand dune formed by wind blowing predominantly from one direction in a desert environment. Barchans are one of the most common types of sand dunes. Their shape is a direct result of unidirectional wind flow and limited sand supply.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-regarding-barchan-is-are-correct\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T07:00:28+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-regarding-barchan-is-are-correct\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-regarding-barchan-is-are-correct\/","name":"Which of the following statements regarding Barchan is\/are correct ?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T07:00:28+00:00","dateModified":"2025-06-01T07:00:28+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Statement 1 is correct. A Barchan is indeed a crescent-shaped sand dune formed by wind blowing predominantly from one direction in a desert environment. Barchans are one of the most common types of sand dunes. 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