{"id":84548,"date":"2025-06-01T02:36:07","date_gmt":"2025-06-01T02:36:07","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=84548"},"modified":"2025-06-01T02:36:07","modified_gmt":"2025-06-01T02:36:07","slug":"which-one-of-the-following-is-the-cause-of-long-term-sea-level-change","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-cause-of-long-term-sea-level-change\/","title":{"rendered":"Which one of the following is the cause of long-term sea-level change?"},"content":{"rendered":"

Which one of the following is the cause of long-term sea-level change?<\/p>\n

[amp_mcq option1=”Atmospheric disturbance” option2=”Change in marine water density” option3=”Melting of icebergs” option4=”Melting of ice sheets” correct=”option4″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-1 – 2016<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct answer is the melting of ice sheets.
\n<\/section>\n
\nLong-term sea-level change is primarily driven by factors that significantly alter the total volume of water in the oceans or the size of the ocean basins over geological timescales. Melting of large ice sheets (like Greenland and Antarctic ice sheets) adds substantial mass of water to the ocean, directly contributing to long-term sea-level rise. Thermal expansion of seawater due to warming is another significant long-term factor.
\n<\/section>\n
\nAtmospheric disturbances cause short-term, localized changes in sea level (storm surges). Changes in marine water density can contribute to steric sea-level change (thermal expansion or contraction), which is a long-term factor, but melting of ice sheets represents a direct mass addition. Melting of floating icebergs does not significantly alter sea level, as the ice displaces a volume of water equal to its mass (Archimedes’ principle).
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is the cause of long-term sea-level change? [amp_mcq option1=”Atmospheric disturbance” option2=”Change in marine water density” option3=”Melting of icebergs” option4=”Melting of ice sheets” correct=”option4″] This question was previously asked in UPSC CDS-1 – 2016 Download PDFAttempt Online The correct answer is the melting of ice sheets. Long-term sea-level change is primarily … <\/p>\n

Detailed SolutionWhich one of the following is the cause of long-term sea-level change?<\/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":[1087],"tags":[1098,1156,1106],"class_list":["post-84548","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-1","tag-1098","tag-hydrosphere","tag-world-and-physical-geography","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is the cause of long-term sea-level change?<\/title>\n<meta name=\"description\" content=\"The correct answer is the melting of ice sheets. Long-term sea-level change is primarily driven by factors that significantly alter the total volume of water in the oceans or the size of the ocean basins over geological timescales. Melting of large ice sheets (like Greenland and Antarctic ice sheets) adds substantial mass of water to the ocean, directly contributing to long-term sea-level rise. Thermal expansion of seawater due to warming is another significant long-term factor.\" \/>\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-one-of-the-following-is-the-cause-of-long-term-sea-level-change\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following is the cause of long-term sea-level change?\" \/>\n<meta property=\"og:description\" content=\"The correct answer is the melting of ice sheets. Long-term sea-level change is primarily driven by factors that significantly alter the total volume of water in the oceans or the size of the ocean basins over geological timescales. Melting of large ice sheets (like Greenland and Antarctic ice sheets) adds substantial mass of water to the ocean, directly contributing to long-term sea-level rise. 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