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What difficulty arises if several factors are changed at the same time in an experiment?यदि किसी प्रयोग में एक साथ कई कारक बदल दिए जाएं तो क्या कठिनाई होगी?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: It will be difficult to identify the true cause of the resultपरिणाम का सही कारण पहचानना कठिन होगा
Changing several factors makes it difficult to know which caused the effect. Change one factor at a time.कई कारक बदलने से यह पता लगाना कठिन होता है कि प्रभाव किस कारण से हुआ। एक समय में एक कारक बदलें।
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