MPSC Rajyaseva 2014 GS Paper 1 — Question 32
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अन्नसाखळीमध्ये प्रत्येक ऊर्जास्तरावर विषारी पदार्थाच्या प्रमाणात सलग्न होणाऱ्या वाढीस _________ म्हणतात. The continuous increase in concentration of a toxicant at successive trophic levels in food chain is :
a)जैवनिम्नीकरण / Biodegradation
b)जैवआवर्धन / Biomagnification✓ Correct
c)जैवसंचयन / Bioaccumulation
d)जैवउपचारीकरण / Bioremediation
Biomagnification refers to the progressive increase in the concentration of toxic substances (like DDT or mercury) at higher trophic levels of a food chain.
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डायक्लोरोडिफेनिलट्रायकलोरो इथेन (डीडीटी) सर्वप्रथम क्लोरेनिडेटेड ऑरगॅनिक कीटकनाशक असून परिणामकारक कीड नष्ट करणाऱ्या त्याच्या गुणांकास्ता पॉल मुलर यांना मेडीसीन व फिजिऑलॉजीचे 1948 चे नोबेल पारितोषिक प्रदान करण्यात आले.
वरील कोणती विधाने खरी आहेत ?
Dichlorodiphenyl Trichloro Ethane (DDT) is the first chlorinated organic insecticide for the discovery of its effectiveness as an insecticide Paul Muller was awarded Nobel Prize in Medicine and physiology in 1948.
Which of the above statements are correct ?UNEP च्या नियमाप्रमाणे खालील प्रदूषक आणि त्यांच्या माध्यमांच्या जोड्या जुळवा :
प्रदूषक
अ. नायट्रोजन ऑक्साईड
ब. पेट्रोलियम हायड्रोकार्बन
क. फ्लोराइड
ड. मायकोटॉक्सिन्स
माध्यम
I. समुद्र
II. अन्न
III. हवा
IV. स्वच्छ पाणी
Match the following Pollutants and their Mediums as per the UNEP documents :
Pollutant
a. Nitrogen oxides
b. Petroleum hydrocarbons
c. Fluorides
d. Mycotoxins
Medium
I. Sea
II. Food
III. Air
IV. Fresh water
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