{"id":51355,"date":"2022-01-18T10:30:37","date_gmt":"2022-01-18T05:00:37","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=51355"},"modified":"2025-07-31T17:42:03","modified_gmt":"2025-07-31T12:12:03","slug":"ncert-solutions-for-class-12-biology-16-environmental-issues-16-9-deforestation","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/","title":{"rendered":"NCERT Solutions for Class 12 Biology Chapter 16 Environmental Issues 16.9 Deforestation"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#NCERT_Solutions_for_Class_12_Biology_Chapter_16_Environmental_Issues_169_Deforestation\" title=\"NCERT Solutions for Class 12 Biology Chapter 16 Environmental Issues 16.9 Deforestation\">NCERT Solutions for Class 12 Biology Chapter 16 Environmental Issues 16.9 Deforestation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#Overview_of_Ttopic\" title=\"Overview of Ttopic\">Overview of Ttopic<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#How_Deforestation_Harms_the_Environment\" title=\"How Deforestation Harms the Environment\">How Deforestation Harms the Environment<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#Impact_on_Carbon_Dioxide_Levels\" title=\"Impact on Carbon Dioxide Levels\">Impact on Carbon Dioxide Levels<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#Disruption_of_the_Water_Cycle\" title=\"Disruption of the Water Cycle\">Disruption of the Water Cycle<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#Soil_Erosion\" title=\"Soil Erosion\">Soil Erosion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#Impact_on_Biodiversity\" title=\"Impact on Biodiversity\">Impact on Biodiversity<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#How_can_we_stop_deforestation\" title=\"How can we stop deforestation?\">How can we stop deforestation?<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#Governments_can\" title=\"Governments can\">Governments can<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#What_can_individuals_do\" title=\"What can individuals do?\">What can individuals do?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#FAQs_on_NCERT_Solutions_for_Class_12_Biology_16_Environmental_Issues_169_Deforestation\" title=\"FAQs on NCERT Solutions for Class 12 Biology 16 Environmental Issues 16.9 Deforestation\">FAQs on NCERT Solutions for Class 12 Biology 16 Environmental Issues 16.9 Deforestation<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#What_are_the_main_reasons_for_forests_disappearing\" title=\"What are the main reasons for forests disappearing?\">What are the main reasons for forests disappearing?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#What_happens_to_the_environment_when_forests_are_destroyed\" title=\"What happens to the environment when forests are destroyed?\">What happens to the environment when forests are destroyed?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#How_does_cutting_down_trees_affect_the_water_cycle\" title=\"How does cutting down trees affect the water cycle?\">How does cutting down trees affect the water cycle?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#What_can_I_do_to_help_stop_trees_from_being_cut_down\" title=\"What can I do to help stop trees from being cut down?\">What can I do to help stop trees from being cut down?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-16-environmental-issues-16-9-deforestation\/#How_does_getting_rid_of_forests_affect_the_different_kinds_of_living_things\" title=\"How does getting rid of forests affect the different kinds of living things?\">How does getting rid of forests affect the different kinds of living things?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_12_Biology_Chapter_16_Environmental_Issues_169_Deforestation\"><\/span>NCERT Solutions for Class 12 Biology Chapter 16 Environmental Issues 16.9 Deforestation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Free PDF downloads of Class 12 Biology Chapter 16 on Deforestation, along with other chapters, are provided by experienced teachers following NCERT guidelines. These solutions help you revise the entire syllabus and aim for better grades. Sign up to get all exercise solutions sent to your email.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Overview_of_Ttopic\"><\/span>Overview of Ttopic<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong><a href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/deforestation\/\">Deforestation<\/a> <\/strong>means cutting down lots of trees from forests or other places to make things easier for people. It&#8217;s a big problem for the environment because it leads to fewer types of plants and animals, harms natural homes, messes up how water moves, and makes soil wash away. Deforestation also adds to climate change and makes the Earth warmer.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_Deforestation_Harms_the_Environment\"><\/span>How Deforestation Harms the Environment<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Impact_on_Carbon_Dioxide_Levels\"><\/span>Impact on Carbon Dioxide Levels<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>When forests are cut down, they can&#8217;t absorb carbon dioxide anymore.<\/li>\n<li>This adds to the greenhouse effect, leading to global warming.<\/li>\n<li>Deforestation also directly releases carbon dioxide into the air, contributing to climate change.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Disruption_of_the_Water_Cycle\"><\/span>Disruption of the Water Cycle<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Trees help regulate the water cycle by absorbing and releasing water.<\/li>\n<li>Their roots help water penetrate the soil and increase its capacity to hold water.<\/li>\n<li>Without trees, soil becomes dry, leading to reduced water levels and even <strong><a href=\"https:\/\/infinitylearn.com\/surge\/biology\/desertification\/\">desertification<\/a><\/strong>.<\/li>\n<li>Deforestation can cause droughts and reduce freshwater sources.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Soil_Erosion\"><\/span>Soil Erosion<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Trees hold soil in place with their roots and protect it with plant litter.<\/li>\n<li>Without trees, soil becomes vulnerable to erosion, especially on slopes.<\/li>\n<li>This erosion can lead to landslides and worsen during floods.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Impact_on_Biodiversity\"><\/span>Impact on Biodiversity<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Forests are home to many different plants and animals.<\/li>\n<li>Deforestation threatens these species, leading to declines in local populations and even extinction.<\/li>\n<li>Thousands of species are lost every year due to deforestation.<\/li>\n<li>This loss of biodiversity can disrupt ecosystems and food webs, leading to further consequences.<\/li>\n<\/ul>\n<p><a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/\"> <button class=\"btn btn-primary\" style=\"width: 100%; cursor: pointer;\" type=\"button\">NCERT Solutions for Class 12 Biology<\/button> <\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_can_we_stop_deforestation\"><\/span>How can we stop deforestation?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Governments_can\"><\/span>Governments can<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li>Make strict laws to stop illegal logging.<\/li>\n<li>Protect more forests under government control.<\/li>\n<li>Plan roads and dams carefully to save forests.<\/li>\n<li>Support farmers to use eco-friendly farming methods.<\/li>\n<li>Ban harmful farming like slash-and-burn.<\/li>\n<li>Encourage using alternatives to wood, like bamboo.<\/li>\n<li>Plant trees in places where forests have been cut down.<\/li>\n<li>Plant trees in organized forests for better production.<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"What_can_individuals_do\"><\/span>What can individuals do?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li>Use less paper and choose alternatives.<\/li>\n<li>Avoid disposable items to reduce waste.<\/li>\n<li>Recycle paper and wood products.<\/li>\n<li>Spread awareness about deforestation.<\/li>\n<li>Join tree-planting projects.<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"FAQs_on_NCERT_Solutions_for_Class_12_Biology_16_Environmental_Issues_169_Deforestation\"><\/span>FAQs on NCERT Solutions for Class 12 Biology 16 Environmental Issues 16.9 Deforestation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_are_the_main_reasons_for_forests_disappearing\"><\/span>What are the main reasons for forests disappearing?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tOne of the primary causes of forests disappearing is farming and raising cattle. Trees are often cut down to make room for farms because there's a growing need for food (which is partly due to there being more people). The big culprits behind deforestation in tropical areas are palm oil, timber, soy, and beef. Creating land for cattle to graze is also a major cause of forests being cut down.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_happens_to_the_environment_when_forests_are_destroyed\"><\/span>What happens to the environment when forests are destroyed?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tOne of the biggest problems when forests are destroyed is global warming and changes in the climate. More than a fifth of the greenhouse gases that are warming up the planet come from chopping down tropical rainforests. Trees help hold soil in place with their roots, so when they're removed, soil erosion (when the soil gets washed away) becomes a big issue.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"How_does_cutting_down_trees_affect_the_water_cycle\"><\/span>How does cutting down trees affect the water cycle?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tTrees soak up water from the ground through their roots and then release it into the air through a process called transpiration. Trees are really important for the water cycle because they control how much water is in the air and they help get water from below the ground up into the air.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_can_I_do_to_help_stop_trees_from_being_cut_down\"><\/span>What can I do to help stop trees from being cut down?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tYou can make a difference by doing things like using less paper and using more digital stuff (like emails instead of letters), recycling what you can, buying things made from wood that's been certified as being good for the environment, and telling others about how cutting down trees hurts the Earth.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"How_does_getting_rid_of_forests_affect_the_different_kinds_of_living_things\"><\/span>How does getting rid of forests affect the different kinds of living things?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tTropical rainforests are home to tons of different plants and animals. When the forests get chopped down, many of these living things lose their homes and are put in danger. Even tiny organisms like microbes, which help recycle nutrients and clean water, are affected by deforestation.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\n<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What are the main reasons for forests disappearing?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"One of the primary causes of forests disappearing is farming and raising cattle. Trees are often cut down to make room for farms because there's a growing need for food (which is partly due to there being more people). The big culprits behind deforestation in tropical areas are palm oil, timber, soy, and beef. Creating land for cattle to graze is also a major cause of forests being cut down.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What happens to the environment when forests are destroyed?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"One of the biggest problems when forests are destroyed is global warming and changes in the climate. More than a fifth of the greenhouse gases that are warming up the planet come from chopping down tropical rainforests. Trees help hold soil in place with their roots, so when they're removed, soil erosion (when the soil gets washed away) becomes a big issue.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"How does cutting down trees affect the water cycle?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"Trees soak up water from the ground through their roots and then release it into the air through a process called transpiration. Trees are really important for the water cycle because they control how much water is in the air and they help get water from below the ground up into the air.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What can I do to help stop trees from being cut down?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"You can make a difference by doing things like using less paper and using more digital stuff (like emails instead of letters), recycling what you can, buying things made from wood that's been certified as being good for the environment, and telling others about how cutting down trees hurts the Earth.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"How does getting rid of forests affect the different kinds of living things?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"Tropical rainforests are home to tons of different plants and animals. When the forests get chopped down, many of these living things lose their homes and are put in danger. Even tiny organisms like microbes, which help recycle nutrients and clean water, are affected by deforestation.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t\t\t\t]\n\t}\n<\/script>\n\n","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions for Class 12 Biology Chapter 16 Environmental Issues 16.9 Deforestation Free PDF downloads of Class 12 Biology Chapter [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"NCERT Solutions for class 12 Biology 16 environmental issues 16.9 deforestation","_yoast_wpseo_title":"Class 12 Biology NCERT Solutions: Deforestation & Environmental Issues","_yoast_wpseo_metadesc":"Access comprehensive NCERT solutions for Class 12 Biology covering Chapter 16 on Environmental Issues, with a focus on the impact and solutions to 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