14 public questions tagged with this topic.
गद्यांश के अनुसार मनुष्य की रुचि एवं आत्मशक्ति को कम करने के कारण सही उत्तर है क्योंकि पाठ में इसका स्पष्ट उल्लेख मिलता है।
Ref: NCERT Hindi Class XII Apathit Gadyansh explains comprehension passages questions interpretation skills for CUET Hindi preparation with examples clearly.
गद्यांश के अनुसार रुचि के अनुसार काम करने का अवसर प्रदान करना सही उत्तर है क्योंकि पाठ में इसका स्पष्ट उल्लेख मिलता है।
Ref: NCERT Hindi Class XII Apathit Gadyansh explains comprehension passages questions interpretation skills for CUET Hindi preparation with examples clearly.
गद्यांश के अनुसार उपरोक्त सभी सही उत्तर है क्योंकि पाठ में इसका स्पष्ट उल्लेख मिलता है।
Ref: NCERT Hindi Class XII Apathit Gadyansh explains comprehension passages questions interpretation skills for CUET Hindi preparation with examples clearly.
C₄ plants prevent photorespiration by maintaining high CO₂ levels in the bundle sheath cells, making them more efficient.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants C4 Pathway - Hatch and Slack and Photorespiration
C₃ plants have lower productivity in hot climates because they undergo high rates of photorespiration, reducing CO₂ fixation efficiency.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants C4 Pathway - Hatch and Slack and Photorespiration
Productivity is a rate of biomass or carbon production and therefore requires dimensions of mass per area per time. Grams per square metre per day includes the essential time denominator, whereas grams per square metre, kilograms per hectare, and grams dry weight describe standing amount rather than production rate. Carbon accounting separates gross fixation from respiratory expenditure. Gross primary productivity records all photosynthetic carbon fixation; net primary productivity subtracts autotrophic respiration, while net community productivity subtracts total ecosystem respiration. Keepin
Ref: Ecology: From Individuals to Ecosystems, Begon et al., 5th Ed., Ch. 17
Estuaries commonly sustain exceptionally high areal primary productivity because river inputs, tidal mixing, and sediment regeneration continuously supply nutrients to shallow, well-lit water. Marsh plants, seagrasses, benthic algae, and phytoplankton may all contribute, while tidal exchange prevents persistent nutrient exhaustion. Carbon accounting separates gross fixation from respiratory expenditure. Gross primary productivity records all photosynthetic carbon fixation; net primary productivity subtracts autotrophic respiration, while net community productivity subtracts total ecosystem res
Ref: Ecology: From Individuals to Ecosystems, Begon et al., 5th Ed., Ch. 17
Tropical forests commonly have very high net primary productivity per unit area because warm temperatures, abundant rainfall, and long growing seasons permit photosynthesis for much of the year. Their multilayered canopies intercept substantial light, and rapid nutrient uptake supports continuous leaf and wood production even where weathered soils contain small available nutrient pools. Open ocean has enormous total production globally because it covers such a vast area, but its productivity per square metre is generally low because nutrients are dilute or stratified away from surface light. T
Ref: Ecology: From Individuals to Ecosystems, Begon et al., 5th Ed., Ch. 17
Productivity changes differently depending on whether gross primary production, net primary production, or net ecosystem production is measured. During early succession, expanding leaf area and improving soil conditions raise gross production rapidly. Net production can peak in young or intermediate communities because photosynthesis is high while maintenance respiration is still relatively low. As biomass accumulates, respiration by plants, animals, and decomposers increases, and net ecosystem production declines toward approximate balance in a mature system. Gross production may stabilize ra
Ref: Ecology: Concepts and Applications, Molles, 9th Ed., Ch. 20
Deserts generally have the lowest primary productivity among the terrestrial ecosystems listed because water availability sharply limits photosynthesis, leaf area, and the length of active growth. Rainfall is sparse and unpredictable, and evaporation may exceed precipitation. Plants often remain widely spaced and invest resources in water storage, conservative metabolism, or extensive roots rather than continuous rapid growth. Productivity can surge briefly after rain, but annual net primary production remains low. Forests maintain much larger leaf area and biomass where temperature and water
Ref: Ecology: Concepts and Applications, Molles, 9th Ed., Ch. 2-3
Liebig’s barrel illustrates limitation by imagining each essential resource as a stave of unequal height. The shortest stave determines how much water the barrel can hold, just as the scarcest resource relative to demand constrains growth. Increasing already abundant resources does not raise production until the limiting one is supplied; limitation may then shift to another resource. The analogy is useful but simplified, because organisms can face co-limitation, substitute some resources, and experience interacting constraints involving nutrients, light, water, and temperature. Standardizing b
Ref: Fundamentals of Ecology, Odum & Barrett, 5th Ed., Ch. 3
“Tropical rainforest” for which biome is known for the highest productivity per unit area. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Terrestrial biomes are distinguished primarily by long-term temperature and precipitation regimes, their seasonality, and the vegetation physiognomy those conditions support. Latitude is informative only because it often covaries with climate. The remaining alternatives—“Desert”, “Taiga”, “Temperate forest”—refer to different states, processes, or scales and th
Ref: Campbell Biology, Urry et al., 12th Ed., Ch. 52
