RRB ALP practice question
Producers in a field fix 20,000 units of energy. Following the 10% law, how much energy is available to the tertiary consumers (the fourth trophic level) in the chain?
From a RRB ALP Science practice set · Science
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Correct answer: (C) 20 units
Each transfer keeps about 10%: producers 20,000, primary consumers 2,000, secondary consumers 200 and tertiary consumers 20 units. So 20,000 x (1/10) x (1/10) x (1/10) = 20 units reach the fourth trophic level.
हिंदी में प्रश्न
किसी खेत में उत्पादक 20,000 इकाई ऊर्जा स्थिर करते हैं। 10% नियम के अनुसार शृंखला में तृतीयक उपभोक्ताओं (चौथे पोषी स्तर) को कितनी ऊर्जा उपलब्ध होगी?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
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सही उत्तर: (C) 20 इकाई
प्रत्येक स्थानांतरण में लगभग 10% ऊर्जा बचती है: उत्पादक 20,000, प्राथमिक उपभोक्ता 2,000, द्वितीयक उपभोक्ता 200 और तृतीयक उपभोक्ता 20 इकाई। इसलिए 20,000 x (1/10) x (1/10) x (1/10) = 20 इकाई चौथे पोषी स्तर तक पहुँचती है।
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