{"id":4408,"date":"2023-02-05T06:40:38","date_gmt":"2023-02-05T06:40:38","guid":{"rendered":"https:\/\/9thclass.deltapublications.in\/?page_id=4408"},"modified":"2025-05-29T05:09:27","modified_gmt":"2025-05-29T05:09:27","slug":"s-26-a-water-and-nitrogen-cycle","status":"publish","type":"page","link":"https:\/\/9thclass.deltapublications.in\/index.php\/s-26-a-water-and-nitrogen-cycle\/","title":{"rendered":"S-26.a Water And Nitrogen Cycle"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Water And Nitrogen Cycle<\/strong><\/h2>\n\n\n\n<p class=\"has-text-color has-huge-font-size\" style=\"color:#74008b\">key notes :<\/p>\n\n\n\n<div class=\"wp-block-group has-large-font-size\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading has-text-align-center has-text-color has-background has-link-color wp-elements-cf6787f41876ae4c863ac4b3df1c3931\" style=\"color:#000060;background-color:#dfc816\"><strong>Water Cycle (Hydrological Cycle)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The water cycle is a natural process through which water moves continuously between Earth&#8217;s surface and atmosphere, maintaining the planet&#8217;s water balance.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-49.png\" alt=\"\" class=\"wp-image-16953\" style=\"width:318px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-49.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-49-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<p class=\"has-text-align-center has-background\" style=\"background-color:#dfc816\"><strong>Key Processes in the Water Cycle<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Evaporation<\/strong>: The heat from the sun causes water from oceans, rivers, and lakes to convert into water vapor and rise into the atmosphere.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-51.png\" alt=\"\" class=\"wp-image-16956\" style=\"width:380px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-51.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-51-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Condensation<\/strong>: As the water vapor rises, it cools and changes into tiny water droplets, forming clouds.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-52.png\" alt=\"\" class=\"wp-image-16957\" style=\"width:414px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-52.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-52-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Precipitation<\/strong>: When the water droplets in clouds combine and grow heavy, they fall to the ground as rain, snow, or hail.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-53.png\" alt=\"\" class=\"wp-image-16958\" style=\"width:430px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-53.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-53-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Infiltration<\/strong>: Some of the water from precipitation seeps into the ground, replenishing underground water sources or aquifers.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-55.png\" alt=\"\" class=\"wp-image-16959\" style=\"width:424px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-55.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-55-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Runoff<\/strong>: Water that does not seep into the ground flows over the surface into rivers, lakes, and eventually back to the oceans.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-56.png\" alt=\"\" class=\"wp-image-16961\" style=\"width:474px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-56.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-56-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Transpiration<\/strong>: Plants absorb water through their roots and release it as vapor into the atmosphere through their leaves.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-57.png\" alt=\"\" class=\"wp-image-16962\" style=\"width:468px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-57.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-57-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Significance of the Water Cycle<\/strong>:\n<ul class=\"wp-block-list\">\n<li>It ensures a consistent supply of fresh water for living organisms.<\/li>\n\n\n\n<li>It regulates the Earth&#8217;s temperature and climate by influencing weather patterns.<\/li>\n\n\n\n<li>It plays a vital role in supporting ecosystems and agricultural practices.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-text-color has-background has-link-color wp-elements-242d8cd53ab5e6392fd8a9e59064e4ec\" style=\"color:#000060;background-color:#dfc816\"><strong>Nitrogen Cycle<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The nitrogen cycle is a critical process that converts atmospheric nitrogen into forms usable by living organisms and returns nitrogen to the atmosphere to maintain balance.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-50.png\" alt=\"\" class=\"wp-image-16955\" style=\"width:362px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-50.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-50-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<p class=\"has-text-align-center has-background\" style=\"background-color:#dfc816\"><strong>Key Processes in the Nitrogen Cycle<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Nitrogen Fixation<\/strong>: Atmospheric nitrogen gas (N\u2082), which cannot be used directly by plants, is converted into ammonia (NH\u2083) or other compounds by nitrogen-fixing bacteria in the soil or during lightning storms.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-58.png\" alt=\"\" class=\"wp-image-16963\" style=\"width:376px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-58.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-58-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Nitrification<\/strong>: Ammonia is further converted into nitrites (NO\u2082\u207b) and then into nitrates (NO\u2083\u207b) by nitrifying bacteria. Nitrates are absorbed by plants to create proteins and other compounds.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-59.png\" alt=\"\" class=\"wp-image-16964\" style=\"width:474px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-59.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-59-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Assimilation<\/strong>: Plants use the nitrates absorbed from the soil to synthesize proteins and nucleic acids. When animals consume plants, the nitrogen becomes part of their bodies.\\<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-60.png\" alt=\"\" class=\"wp-image-16965\" style=\"width:452px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-60.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-60-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ammonification<\/strong>: Decomposers break down organic matter like dead plants and animals, releasing ammonia back into the soil.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-61.png\" alt=\"\" class=\"wp-image-16966\" style=\"width:396px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-61.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-61-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Denitrification<\/strong>: Denitrifying bacteria convert nitrates in the soil back into nitrogen gas (N\u2082), which is released into the atmosphere, completing the cycle.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-62.png\" alt=\"\" class=\"wp-image-16967\" style=\"width:402px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-62.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-62-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Significance of the Nitrogen Cycle<\/strong>:\n<ul class=\"wp-block-list\">\n<li>It provides plants with essential nitrogen, a key component of proteins and DNA.<\/li>\n\n\n\n<li>It ensures the recycling of nitrogen within ecosystems, supporting life processes.<\/li>\n\n\n\n<li>It maintains the balance of nitrogen levels in the soil and atmosphere, preventing excess buildup or depletion.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading alignwide has-text-align-center has-text-color has-background has-link-color wp-elements-5d8d6a13d717b304366a2e0999ce84cc\" style=\"color:#000060;background-color:#dfc816\"><strong>Importance of Both Cycles<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>These cycles are interconnected and crucial for maintaining the balance of essential elements on Earth.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-63.png\" alt=\"\" class=\"wp-image-16968\" style=\"width:350px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-63.png 700w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/05\/Water-Molecule-63-300x214.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li>They support life by recycling water and nitrogen, ensuring the availability of these resources for plants, animals, and microorganisms.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\"><strong>Let&#8217;s practice!<\/strong><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/82792\/840\/944\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-49.png\" alt=\"\" class=\"wp-image-6284\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-49.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-49-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-49-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/81570\/854\/200\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-49.png\" alt=\"\" class=\"wp-image-6285\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-49.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-49-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-49-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Water And Nitrogen Cycle key notes : Water Cycle (Hydrological Cycle) Key Processes in the Water Cycle: Nitrogen Cycle Key Processes in the Nitrogen Cycle: Importance of Both Cycles Let&#8217;s practice!<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-4408","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/4408","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=4408"}],"version-history":[{"count":15,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/4408\/revisions"}],"predecessor-version":[{"id":16969,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/4408\/revisions\/16969"}],"wp:attachment":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=4408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}