{"id":90388,"date":"2025-06-01T10:27:33","date_gmt":"2025-06-01T10:27:33","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=90388"},"modified":"2025-06-01T10:27:33","modified_gmt":"2025-06-01T10:27:33","slug":"if-the-equatorial-plane-of-earth-is-not-inclined-to-its-orbit-then","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/if-the-equatorial-plane-of-earth-is-not-inclined-to-its-orbit-then\/","title":{"rendered":"If the equatorial plane of earth is NOT inclined to its orbit, then"},"content":{"rendered":"

If the equatorial plane of earth is NOT inclined to its orbit, then<\/p>\n

[amp_mcq option1=”duration of the year would be longer” option2=”summer would be warmer” option3=”there would be no change of seasons” option4=”winter would be longer” correct=”option3″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CAPF – 2019<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct answer is C) there would be no change of seasons.
\n<\/section>\n
\nThe primary cause of the Earth’s seasons is the tilt of its rotational axis relative to its orbital plane around the Sun. The Earth’s axis is currently tilted at approximately 23.5 degrees.<\/p>\n

* This tilt causes different parts of the Earth to be inclined towards or away from the Sun at different times of the year. When a hemisphere is tilted towards the Sun, it receives more direct sunlight and experiences summer. When it is tilted away, it receives less direct sunlight and experiences winter.
\n* If the equatorial plane of Earth were *not* inclined to its orbit (meaning the axial tilt was 0 degrees), the amount of sunlight received at any given latitude would be constant throughout the year. The Sun would always appear directly overhead at the equator at noon every day.
\n* This lack of variation in solar insolation across the year at different latitudes would mean there would be no distinct seasonal changes like summer, winter, spring, and autumn. The temperature and climate at any location would remain relatively stable year-round, primarily varying with latitude.
\n* Option A is incorrect because the duration of the year is determined by the time it takes for Earth to complete one orbit around the Sun (approximately 365.25 days), which is independent of the axial tilt.
\n* Options B and D are incorrect because summer and winter, as defined by varying temperatures and daylight hours caused by axial tilt, would not exist in their current form. While temperatures would vary by latitude, they wouldn’t follow the cyclical seasonal pattern caused by tilt.
\n<\/section>\n

\nWithout axial tilt, regions near the equator would still be the warmest, and regions near the poles the coldest, due to the angle at which sunlight strikes the surface. However, the annual cycle of warming and cooling associated with the seasons in mid-latitudes would be absent.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

If the equatorial plane of earth is NOT inclined to its orbit, then [amp_mcq option1=”duration of the year would be longer” option2=”summer would be warmer” option3=”there would be no change of seasons” option4=”winter would be longer” correct=”option3″] This question was previously asked in UPSC CAPF – 2019 Download PDFAttempt Online The correct answer is C) … <\/p>\n

Detailed SolutionIf the equatorial plane of earth is NOT inclined to its orbit, then<\/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":[1085],"tags":[1119,1215,1106],"class_list":["post-90388","post","type-post","status-publish","format-standard","hentry","category-upsc-capf","tag-1119","tag-earth-concepts","tag-world-and-physical-geography","no-featured-image-padding"],"yoast_head":"\nIf the equatorial plane of earth is NOT inclined to its orbit, then<\/title>\n<meta name=\"description\" content=\"The correct answer is C) there would be no change of seasons. The primary cause of the Earth's seasons is the tilt of its rotational axis relative to its orbital plane around the Sun. The Earth's axis is currently tilted at approximately 23.5 degrees. * This tilt causes different parts of the Earth to be inclined towards or away from the Sun at different times of the year. When a hemisphere is tilted towards the Sun, it receives more direct sunlight and experiences summer. When it is tilted away, it receives less direct sunlight and experiences winter. * If the equatorial plane of Earth were *not* inclined to its orbit (meaning the axial tilt was 0 degrees), the amount of sunlight received at any given latitude would be constant throughout the year. The Sun would always appear directly overhead at the equator at noon every day. * This lack of variation in solar insolation across the year at different latitudes would mean there would be no distinct seasonal changes like summer, winter, spring, and autumn. The temperature and climate at any location would remain relatively stable year-round, primarily varying with latitude. * Option A is incorrect because the duration of the year is determined by the time it takes for Earth to complete one orbit around the Sun (approximately 365.25 days), which is independent of the axial tilt. * Options B and D are incorrect because summer and winter, as defined by varying temperatures and daylight hours caused by axial tilt, would not exist in their current form. While temperatures would vary by latitude, they wouldn't follow the cyclical seasonal pattern caused by tilt.\" \/>\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\/if-the-equatorial-plane-of-earth-is-not-inclined-to-its-orbit-then\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"If the equatorial plane of earth is NOT inclined to its orbit, then\" \/>\n<meta property=\"og:description\" content=\"The correct answer is C) there would be no change of seasons. The primary cause of the Earth's seasons is the tilt of its rotational axis relative to its orbital plane around the Sun. The Earth's axis is currently tilted at approximately 23.5 degrees. * This tilt causes different parts of the Earth to be inclined towards or away from the Sun at different times of the year. When a hemisphere is tilted towards the Sun, it receives more direct sunlight and experiences summer. When it is tilted away, it receives less direct sunlight and experiences winter. * If the equatorial plane of Earth were *not* inclined to its orbit (meaning the axial tilt was 0 degrees), the amount of sunlight received at any given latitude would be constant throughout the year. The Sun would always appear directly overhead at the equator at noon every day. * This lack of variation in solar insolation across the year at different latitudes would mean there would be no distinct seasonal changes like summer, winter, spring, and autumn. The temperature and climate at any location would remain relatively stable year-round, primarily varying with latitude. * Option A is incorrect because the duration of the year is determined by the time it takes for Earth to complete one orbit around the Sun (approximately 365.25 days), which is independent of the axial tilt. * Options B and D are incorrect because summer and winter, as defined by varying temperatures and daylight hours caused by axial tilt, would not exist in their current form. While temperatures would vary by latitude, they wouldn't follow the cyclical seasonal pattern caused by tilt.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/if-the-equatorial-plane-of-earth-is-not-inclined-to-its-orbit-then\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:27:33+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=\"2 minutes\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"If the equatorial plane of earth is NOT inclined to its orbit, then","description":"The correct answer is C) there would be no change of seasons. The primary cause of the Earth's seasons is the tilt of its rotational axis relative to its orbital plane around the Sun. The Earth's axis is currently tilted at approximately 23.5 degrees. * This tilt causes different parts of the Earth to be inclined towards or away from the Sun at different times of the year. When a hemisphere is tilted towards the Sun, it receives more direct sunlight and experiences summer. When it is tilted away, it receives less direct sunlight and experiences winter. * If the equatorial plane of Earth were *not* inclined to its orbit (meaning the axial tilt was 0 degrees), the amount of sunlight received at any given latitude would be constant throughout the year. The Sun would always appear directly overhead at the equator at noon every day. * This lack of variation in solar insolation across the year at different latitudes would mean there would be no distinct seasonal changes like summer, winter, spring, and autumn. The temperature and climate at any location would remain relatively stable year-round, primarily varying with latitude. * Option A is incorrect because the duration of the year is determined by the time it takes for Earth to complete one orbit around the Sun (approximately 365.25 days), which is independent of the axial tilt. * Options B and D are incorrect because summer and winter, as defined by varying temperatures and daylight hours caused by axial tilt, would not exist in their current form. While temperatures would vary by latitude, they wouldn't follow the cyclical seasonal pattern caused by tilt.","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\/if-the-equatorial-plane-of-earth-is-not-inclined-to-its-orbit-then\/","og_locale":"en_US","og_type":"article","og_title":"If the equatorial plane of earth is NOT inclined to its orbit, then","og_description":"The correct answer is C) there would be no change of seasons. The primary cause of the Earth's seasons is the tilt of its rotational axis relative to its orbital plane around the Sun. The Earth's axis is currently tilted at approximately 23.5 degrees. * This tilt causes different parts of the Earth to be inclined towards or away from the Sun at different times of the year. When a hemisphere is tilted towards the Sun, it receives more direct sunlight and experiences summer. When it is tilted away, it receives less direct sunlight and experiences winter. * If the equatorial plane of Earth were *not* inclined to its orbit (meaning the axial tilt was 0 degrees), the amount of sunlight received at any given latitude would be constant throughout the year. The Sun would always appear directly overhead at the equator at noon every day. * This lack of variation in solar insolation across the year at different latitudes would mean there would be no distinct seasonal changes like summer, winter, spring, and autumn. The temperature and climate at any location would remain relatively stable year-round, primarily varying with latitude. * Option A is incorrect because the duration of the year is determined by the time it takes for Earth to complete one orbit around the Sun (approximately 365.25 days), which is independent of the axial tilt. * Options B and D are incorrect because summer and winter, as defined by varying temperatures and daylight hours caused by axial tilt, would not exist in their current form. While temperatures would vary by latitude, they wouldn't follow the cyclical seasonal pattern caused by tilt.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/if-the-equatorial-plane-of-earth-is-not-inclined-to-its-orbit-then\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:27:33+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/if-the-equatorial-plane-of-earth-is-not-inclined-to-its-orbit-then\/","url":"https:\/\/exam.pscnotes.com\/mcq\/if-the-equatorial-plane-of-earth-is-not-inclined-to-its-orbit-then\/","name":"If the equatorial plane of earth is NOT inclined to its orbit, then","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:27:33+00:00","dateModified":"2025-06-01T10:27:33+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct answer is C) there would be no change of seasons. The primary cause of the Earth's seasons is the tilt of its rotational axis relative to its orbital plane around the Sun. The Earth's axis is currently tilted at approximately 23.5 degrees. * This tilt causes different parts of the Earth to be inclined towards or away from the Sun at different times of the year. When a hemisphere is tilted towards the Sun, it receives more direct sunlight and experiences summer. When it is tilted away, it receives less direct sunlight and experiences winter. * If the equatorial plane of Earth were *not* inclined to its orbit (meaning the axial tilt was 0 degrees), the amount of sunlight received at any given latitude would be constant throughout the year. The Sun would always appear directly overhead at the equator at noon every day. * This lack of variation in solar insolation across the year at different latitudes would mean there would be no distinct seasonal changes like summer, winter, spring, and autumn. The temperature and climate at any location would remain relatively stable year-round, primarily varying with latitude. * Option A is incorrect because the duration of the year is determined by the time it takes for Earth to complete one orbit around the Sun (approximately 365.25 days), which is independent of the axial tilt. * Options B and D are incorrect because summer and winter, as defined by varying temperatures and daylight hours caused by axial tilt, would not exist in their current form. While temperatures would vary by latitude, they wouldn't follow the cyclical seasonal pattern caused by tilt.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/if-the-equatorial-plane-of-earth-is-not-inclined-to-its-orbit-then\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/if-the-equatorial-plane-of-earth-is-not-inclined-to-its-orbit-then\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/if-the-equatorial-plane-of-earth-is-not-inclined-to-its-orbit-then\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC CAPF","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-capf\/"},{"@type":"ListItem","position":3,"name":"If the equatorial plane of earth is NOT inclined to its orbit, then"}]},{"@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\/90388","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=90388"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/90388\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=90388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=90388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=90388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}