किस प्रेक्षण से यह निष्कर्ष निकालना उचित नहीं होगा कि उर्वरक ही वृद्धि का कारण था?
Which observation would make it inappropriate to conclude that fertilizer alone caused the growth?
Explanation opens after your attempt
A. उर्वरक वाले पौधों को अधिक पानी भी मिलाFertilized plants also received more water
Concept
Extra water could also affect growth so the cause is unclear. In exams identify any second factor changed at the same time.
Why this answer is correct
The correct answer is A. उर्वरक वाले पौधों को अधिक पानी भी मिला / Fertilized plants also received more water. Extra water could also affect growth so the cause is unclear. In exams identify any second factor changed at the same time.
Exam Tip
अधिक पानी भी वृद्धि को प्रभावित कर सकता है इसलिए कारण स्पष्ट नहीं रहता। परीक्षा में एक साथ बदले गए दूसरे कारक को पहचानें।
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