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Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?
- a)Oceans, lakes, grasslands, mangroves
- b)Mangroves, oceans, grasslands, lakes
- c)Mangroves, grasslands, lakes, oceans
- d)Oceans, mangroves, lakes, grasslands
Correct answer is option 'C'. Can you explain this answer?
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Which one of the following is the correct sequence of ecosystems in th...
Explanation: Productivity is the production of new biomass by an ecosystem.
Different ecosystem have different rate of productivity which depend on various factors like water, nutrients, temperature etc.
In the given ecosystems mangrove have highest productivity due to it having high species richness as it represents ecotone between terrestrial and marine ecosystem. Then comes the grasslands which represents ecotone between tropics and desert but less productive than mangroves due to low moisture content.
Lake comes third as its productivity various on level of nutrients with eutrophic being more productive. Oceans are least among the four inspite of being large in area because only up to 250 m of ocean is productive where sunlight is available called photic zone.
Hence option c is the right sequence
Educational Objective: To study salient features of different ecosystems and evaluating their contribution to world biomass.
Different ecosystem have different rate of productivity which depend on various factors like water, nutrients, temperature etc.
In the given ecosystems mangrove have highest productivity due to it having high species richness as it represents ecotone between terrestrial and marine ecosystem. Then comes the grasslands which represents ecotone between tropics and desert but less productive than mangroves due to low moisture content.
Lake comes third as its productivity various on level of nutrients with eutrophic being more productive. Oceans are least among the four inspite of being large in area because only up to 250 m of ocean is productive where sunlight is available called photic zone.
Hence option c is the right sequence
Educational Objective: To study salient features of different ecosystems and evaluating their contribution to world biomass.
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Which one of the following is the correct sequence of ecosystems in th...
Correct sequence of ecosystems in the order of decreasing productivity
The correct sequence of ecosystems in the order of decreasing productivity is:
a) Oceans, lakes, grasslands, mangroves
Explanation
Productivity of an ecosystem refers to the rate of production of biomass by the living organisms in that ecosystem. The productivity of an ecosystem depends on various factors such as availability of nutrients, water, sunlight, and temperature.
Oceans - Oceans are the most productive ecosystems on the planet, accounting for more than 70% of the Earth's productivity. The high productivity of oceans is due to the presence of phytoplankton, which are microscopic plants that carry out photosynthesis in the surface waters.
Lakes - Lakes are the second most productive ecosystems on the planet. The productivity of lakes is also due to the presence of phytoplankton and other aquatic plants that carry out photosynthesis.
Grasslands - Grasslands are moderately productive ecosystems. The productivity of grasslands is due to the presence of grasses and other herbaceous plants that carry out photosynthesis.
Mangroves - Mangroves are the least productive ecosystems among the four options given. The productivity of mangroves is lower than that of other ecosystems because of the harsh environmental conditions such as high salinity, low oxygen levels, and limited nutrient availability.
Therefore, the correct sequence of ecosystems in the order of decreasing productivity is Oceans, lakes, grasslands, mangroves.
The correct sequence of ecosystems in the order of decreasing productivity is:
a) Oceans, lakes, grasslands, mangroves
Explanation
Productivity of an ecosystem refers to the rate of production of biomass by the living organisms in that ecosystem. The productivity of an ecosystem depends on various factors such as availability of nutrients, water, sunlight, and temperature.
Oceans - Oceans are the most productive ecosystems on the planet, accounting for more than 70% of the Earth's productivity. The high productivity of oceans is due to the presence of phytoplankton, which are microscopic plants that carry out photosynthesis in the surface waters.
Lakes - Lakes are the second most productive ecosystems on the planet. The productivity of lakes is also due to the presence of phytoplankton and other aquatic plants that carry out photosynthesis.
Grasslands - Grasslands are moderately productive ecosystems. The productivity of grasslands is due to the presence of grasses and other herbaceous plants that carry out photosynthesis.
Mangroves - Mangroves are the least productive ecosystems among the four options given. The productivity of mangroves is lower than that of other ecosystems because of the harsh environmental conditions such as high salinity, low oxygen levels, and limited nutrient availability.
Therefore, the correct sequence of ecosystems in the order of decreasing productivity is Oceans, lakes, grasslands, mangroves.
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Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?a)Oceans, lakes, grasslands, mangrovesb)Mangroves, oceans, grasslands, lakesc)Mangroves, grasslands, lakes, oceansd)Oceans, mangroves, lakes, grasslandsCorrect answer is option 'C'. Can you explain this answer?
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Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?a)Oceans, lakes, grasslands, mangrovesb)Mangroves, oceans, grasslands, lakesc)Mangroves, grasslands, lakes, oceansd)Oceans, mangroves, lakes, grasslandsCorrect answer is option 'C'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?a)Oceans, lakes, grasslands, mangrovesb)Mangroves, oceans, grasslands, lakesc)Mangroves, grasslands, lakes, oceansd)Oceans, mangroves, lakes, grasslandsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?a)Oceans, lakes, grasslands, mangrovesb)Mangroves, oceans, grasslands, lakesc)Mangroves, grasslands, lakes, oceansd)Oceans, mangroves, lakes, grasslandsCorrect answer is option 'C'. Can you explain this answer?.
Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?a)Oceans, lakes, grasslands, mangrovesb)Mangroves, oceans, grasslands, lakesc)Mangroves, grasslands, lakes, oceansd)Oceans, mangroves, lakes, grasslandsCorrect answer is option 'C'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?a)Oceans, lakes, grasslands, mangrovesb)Mangroves, oceans, grasslands, lakesc)Mangroves, grasslands, lakes, oceansd)Oceans, mangroves, lakes, grasslandsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?a)Oceans, lakes, grasslands, mangrovesb)Mangroves, oceans, grasslands, lakesc)Mangroves, grasslands, lakes, oceansd)Oceans, mangroves, lakes, grasslandsCorrect answer is option 'C'. Can you explain this answer?.
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