{"id":86687,"date":"2025-06-01T04:18:36","date_gmt":"2025-06-01T04:18:36","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=86687"},"modified":"2025-06-01T04:18:36","modified_gmt":"2025-06-01T04:18:36","slug":"which-one-of-the-following-ecosystems-has-the-highest-net-primary","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-ecosystems-has-the-highest-net-primary\/","title":{"rendered":"Which one of the following ecosystems has the highest net primary"},"content":{"rendered":"

Which one of the following ecosystems has the highest net primary productivity?<\/p>\n

[amp_mcq option1=”Rainforest” option2=”Extreme desert” option3=”Lakes and streams” option4=”Mid-latitude grassland” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC Geoscientist – 2020<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct answer is Rainforest. Tropical rainforests exhibit the highest net primary productivity (NPP) among terrestrial ecosystems.
\n<\/section>\n
\n– Net Primary Productivity (NPP) is the rate at which producers (plants) accumulate biomass or store energy, calculated as Gross Primary Productivity (GPP) minus the energy used in respiration.
\n– Tropical rainforests have ideal conditions for plant growth: high temperatures, abundant rainfall, and high light intensity throughout the year, leading to very high rates of photosynthesis and biomass accumulation.
\n<\/section>\n
\n– Extreme deserts have very low NPP due to limited water availability.
\n– Lakes and streams (freshwater ecosystems) have moderate NPP, varying greatly depending on factors like nutrient levels and light penetration.
\n– Mid-latitude grasslands also have moderate NPP, often limited by seasonal rainfall and temperature variations compared to tropical rainforests. Estuaries and coral reefs are aquatic ecosystems with also very high NPP, sometimes comparable to or exceeding rainforests on a per-unit-area basis, but rainforests cover much larger areas globally.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following ecosystems has the highest net primary productivity? [amp_mcq option1=”Rainforest” option2=”Extreme desert” option3=”Lakes and streams” option4=”Mid-latitude grassland” correct=”option1″] This question was previously asked in UPSC Geoscientist – 2020 Download PDFAttempt Online The correct answer is Rainforest. Tropical rainforests exhibit the highest net primary productivity (NPP) among terrestrial ecosystems. – Net Primary … <\/p>\n

Detailed SolutionWhich one of the following ecosystems has the highest net primary<\/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":[1091],"tags":[1288,1367,1136],"class_list":["post-86687","post","type-post","status-publish","format-standard","hentry","category-upsc-geoscientist","tag-1288","tag-ecology","tag-environment-and-ecology","no-featured-image-padding"],"yoast_head":"\nWhich one of the following ecosystems has the highest net primary<\/title>\n<meta name=\"description\" content=\"The correct answer is Rainforest. 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