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Question 1/2 Easy Science 49 Exploration: Entering the World of Secondary Science Class 9 Level 6

पौधे की वृद्धि जांचते समय पानी के अलावा अन्य कारकों को समान क्यों रखा जाता है?

Why are factors other than water kept the same while studying plant growth?

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Correct Answer

A. पानी के प्रभाव को स्पष्ट देखने के लिएTo clearly observe the effect of water

Step 1

Concept

When other factors remain the same the effect of water becomes clear. This is called a fair test.

Step 2

Why this answer is correct

The correct answer is A. पानी के प्रभाव को स्पष्ट देखने के लिए / To clearly observe the effect of water. When other factors remain the same the effect of water becomes clear. This is called a fair test.

Step 3

Exam Tip

अन्य कारक समान रहने पर पानी का प्रभाव स्पष्ट होता है। इसे निष्पक्ष जांच कहते हैं।

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Question 2/2 Medium Science 49 Exploration: Entering the World of Secondary Science Class 9 Level 4

किस प्रश्न में पानी की मात्रा स्वतंत्र चर है?

In which question is the amount of water the independent variable?

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Correct Answer

A. पानी की अलग मात्राएं बीज अंकुरण को कैसे प्रभावित करती हैंHow do different amounts of water affect seed germination

Step 1

Concept

The amount of water is deliberately changed so it is the independent variable. Germination is the measured outcome.

Step 2

Why this answer is correct

The correct answer is A. पानी की अलग मात्राएं बीज अंकुरण को कैसे प्रभावित करती हैं / How do different amounts of water affect seed germination. The amount of water is deliberately changed so it is the independent variable. Germination is the measured outcome.

Step 3

Exam Tip

पानी की मात्रा जानबूझकर बदली जाती है इसलिए यह स्वतंत्र चर है। अंकुरण मापा जाने वाला परिणाम है।

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