{"id":85581,"date":"2025-06-01T03:22:01","date_gmt":"2025-06-01T03:22:01","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85581"},"modified":"2025-06-01T03:22:01","modified_gmt":"2025-06-01T03:22:01","slug":"excessive-use-of-which-of-the-following-fertilizers-may-be-responsible","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/excessive-use-of-which-of-the-following-fertilizers-may-be-responsible\/","title":{"rendered":"Excessive use of which of the following fertilizers may be responsible"},"content":{"rendered":"

Excessive use of which of the following fertilizers may be responsible for the presence of a toxic substance in groundwater?<\/p>\n

[amp_mcq option1=”Nitrogen” option2=”Phosphate only” option3=”Potassium only” option4=”Phosphate and potassium” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-2 – 2016<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nExcessive use of nitrogen fertilizers, particularly those containing nitrates or ammonium, can lead to the leaching of nitrates (NO\u2083\u207b) into groundwater.
\n<\/section>\n
\nNitrates are highly soluble and negatively charged, making them mobile in soil water and susceptible to leaching, especially in well-drained soils and areas with high rainfall or irrigation. Elevated levels of nitrates in drinking water are a human health concern, particularly for infants, as nitrates can be converted to nitrites in the digestive system, interfering with the blood’s oxygen-carrying capacity (causing methemoglobinemia). Phosphates are generally less mobile in soil due to adsorption to soil particles. Potassium is also relatively mobile but does not pose the same level of direct toxicity risk in drinking water as nitrates at common concentrations.
\n<\/section>\n
\nNitrate contamination of groundwater is a significant environmental issue in agricultural regions worldwide. Other sources of nitrates include livestock manure and septic systems.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Excessive use of which of the following fertilizers may be responsible for the presence of a toxic substance in groundwater? [amp_mcq option1=”Nitrogen” option2=”Phosphate only” option3=”Potassium only” option4=”Phosphate and potassium” correct=”option1″] This question was previously asked in UPSC CDS-2 – 2016 Download PDFAttempt Online Excessive use of nitrogen fertilizers, particularly those containing nitrates or ammonium, can … <\/p>\n

Detailed SolutionExcessive use of which of the following fertilizers may be responsible<\/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":[1088],"tags":[1098,1136,1137],"class_list":["post-85581","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-2","tag-1098","tag-environment-and-ecology","tag-pollution","no-featured-image-padding"],"yoast_head":"\nExcessive use of which of the following fertilizers may be responsible<\/title>\n<meta name=\"description\" content=\"Excessive use of nitrogen fertilizers, particularly those containing nitrates or ammonium, can lead to the leaching of nitrates (NO\u2083\u207b) into groundwater. Nitrates are highly soluble and negatively charged, making them mobile in soil water and susceptible to leaching, especially in well-drained soils and areas with high rainfall or irrigation. Elevated levels of nitrates in drinking water are a human health concern, particularly for infants, as nitrates can be converted to nitrites in the digestive system, interfering with the blood's oxygen-carrying capacity (causing methemoglobinemia). Phosphates are generally less mobile in soil due to adsorption to soil particles. Potassium is also relatively mobile but does not pose the same level of direct toxicity risk in drinking water as nitrates at common concentrations.\" \/>\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\/excessive-use-of-which-of-the-following-fertilizers-may-be-responsible\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Excessive use of which of the following fertilizers may be responsible\" \/>\n<meta property=\"og:description\" content=\"Excessive use of nitrogen fertilizers, particularly those containing nitrates or ammonium, can lead to the leaching of nitrates (NO\u2083\u207b) into groundwater. Nitrates are highly soluble and negatively charged, making them mobile in soil water and susceptible to leaching, especially in well-drained soils and areas with high rainfall or irrigation. Elevated levels of nitrates in drinking water are a human health concern, particularly for infants, as nitrates can be converted to nitrites in the digestive system, interfering with the blood's oxygen-carrying capacity (causing methemoglobinemia). Phosphates are generally less mobile in soil due to adsorption to soil particles. Potassium is also relatively mobile but does not pose the same level of direct toxicity risk in drinking water as nitrates at common concentrations.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/excessive-use-of-which-of-the-following-fertilizers-may-be-responsible\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:22:01+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=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Excessive use of which of the following fertilizers may be responsible","description":"Excessive use of nitrogen fertilizers, particularly those containing nitrates or ammonium, can lead to the leaching of nitrates (NO\u2083\u207b) into groundwater. Nitrates are highly soluble and negatively charged, making them mobile in soil water and susceptible to leaching, especially in well-drained soils and areas with high rainfall or irrigation. Elevated levels of nitrates in drinking water are a human health concern, particularly for infants, as nitrates can be converted to nitrites in the digestive system, interfering with the blood's oxygen-carrying capacity (causing methemoglobinemia). Phosphates are generally less mobile in soil due to adsorption to soil particles. 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Elevated levels of nitrates in drinking water are a human health concern, particularly for infants, as nitrates can be converted to nitrites in the digestive system, interfering with the blood's oxygen-carrying capacity (causing methemoglobinemia). Phosphates are generally less mobile in soil due to adsorption to soil particles. 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