यदि तेज ध्वनि वाले पौधों को अधिक खाद भी मिले तो खाद की मात्रा क्या कहलाएगी?
If plants exposed to louder sound also receive more fertiliser what will fertiliser amount be called?
Explanation opens after your attempt
D. बाधक चरConfounding variable
Concept
Fertiliser can also affect growth. Therefore the true effect of sound will not be clear.
Why this answer is correct
The correct answer is D. बाधक चर / Confounding variable. Fertiliser can also affect growth. Therefore the true effect of sound will not be clear.
Exam Tip
खाद भी वृद्धि को प्रभावित कर सकती है। इसलिए ध्वनि का वास्तविक प्रभाव स्पष्ट नहीं रहेगा।
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