Nutritional System in Nature — Important Questions
Gujarat Board · Class 10 · Social Science
43 important questions from Nutritional System in Nature for Gujarat Board Class 10 Social Science, with answers. Written for the board exams 2027.
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Important Questions from Nutritional System in Nature
Which components are part of Dr. Subhash Palekar's classification of nature's nutritional system?
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Regulation of nutrients through food cycle, Provision of nutrients by capillary action, Rain by cyclone (thunderstorm), Activities of local earthworms
Dr. Subhash Palekar classified nature's nutritional system into four types: food cycle regulation, capillary action for nutrient provision, rain through cyclones, and local earthworm activities. Chemical fertilizers are not part of this natural system.
What percentage of sucrose produced by green leaves reaches microbes through roots?
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25%
According to the chapter, green leaves produce sucrose through photosynthesis, and 25% of it reaches the microbes through the roots. In return, these microbes make humus and provide nutrients to the roots.
Which processes are part of the food cycle in nature?
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Carbon cycle, Water cycle, Energy cycle, Humus formation
The food cycle includes carbon cycle (CO2 absorption and release), water cycle (evaporation and rain), energy cycle (solar energy conversion), and humus formation (organic matter decomposition). Artificial fertilization is not part of the natural food cycle.
How much water does a 40-year-old tree release into the air daily?
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200 liters
A 40-year-old tree releases 200 liters of water into the air daily in the form of water vapor. This contributes to cloud formation and helps in the water cycle for rainfall.
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