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In which situation would a photograph be the best supplementary evidence for an observation?किस स्थिति में छायाचित्र प्रेक्षण का सबसे अच्छा पूरक प्रमाण होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: When comparing changes in leaf shape over timeजब समय के साथ पत्ती के आकार परिवर्तन की तुलना करनी हो
A photograph provides a permanent record of visual shape and structure. Appropriate instruments are still needed for quantitative properties.छायाचित्र दृश्य आकार और संरचना का स्थायी अभिलेख देता है। मात्रात्मक गुणों के लिए उपयुक्त यंत्र भी चाहिए।
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