Concept-wise Practice

confounding variables MCQ Questions for Class 9

confounding variables se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

1 questions tagged with confounding variables.

एक प्रयोग में पौधों को अलग मात्रा में खाद दी गई लेकिन प्रत्येक पौधे को अलग मात्रा में जल भी मिला। इस जाँच की मुख्य कमजोरी क्या है?

In an experiment plants received different amounts of fertiliser but each plant also received a different amount of water. What is the main weakness of this investigation?

Explanation opens after your attempt
Correct Answer

D. एक से अधिक कारक बदले गएMore than one factor was changed

Step 1

Concept

Changing both fertiliser and water makes the true cause of the result unclear. In exams keep only one independent variable in a fair test.

Step 2

Why this answer is correct

The correct answer is D. एक से अधिक कारक बदले गए / More than one factor was changed. Changing both fertiliser and water makes the true cause of the result unclear. In exams keep only one independent variable in a fair test.

Step 3

Exam Tip

खाद और जल दोनों बदलने से परिणाम का वास्तविक कारण स्पष्ट नहीं होगा। परीक्षा में निष्पक्ष जाँच के लिए एक ही स्वतंत्र चर रखें।

Open Question Page
Ask Friends