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Q.1 (5) જૈવિક વિવિધતાની દૃષ્ટિએ અતિ સમૃદ્ધ દેશોની સંખ્યા કેટલી છે ?
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Q.2 (3) પ્રકાશસંશ્લેષણ દરમિયાન વનસ્પતિ કયો વાયુ વાતાવરણમાં છોડે છે ?
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Q.3 (1) જીવસૃષ્ટિનું અસ્તિત્વ વાતાવરણમાં કેટલા કિમી સુધી જોવા મળે છે ?
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Q.4 (2) વીજળીનો ચમકારો એ કયા જૈવ રાસાયણિક ચક્ર સાથે જોડાયેલી ઘટના છે ?
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Q.5 (4) સૌર ઊર્જાનું તૃણાહારી પ્રાણીઓ-માંસાહારી પ્રાણીઓ-વિઘટકો એ શ્રૃંખલામાં રૂપાંતર થયા કરે છે. તેને શું કહે છે ?