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What problem occurs if both light and water are changed in one experiment?यदि एक प्रयोग में प्रकाश और पानी दोनों बदल दिए जाएँ तो क्या समस्या होगी?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: The true cause of the result will not be knownपरिणाम का सही कारण पता नहीं चलेगा
When two factors change it becomes difficult to know which caused the result. In exams change only one independent variable.दो कारक बदलने पर यह तय करना कठिन होता है कि परिणाम किसके कारण आया। परीक्षा में केवल एक स्वतंत्र चर बदलें।
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