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Geography Soil formation processes MCQ Questions for Class 11 Science

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मृदा निर्माण की प्रक्रिया को सामान्यतः क्या कहा जाता है?

What is the process of soil formation generally called?

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Correct Answer

B. मृदा जननPedogenesis

Step 1

Concept

Pedogenesis is the process by which soil forms from rock material. Exam tip: remember it as the main term for soil formation.

Step 2

Why this answer is correct

The correct answer is B. मृदा जनन / Pedogenesis. Pedogenesis is the process by which soil forms from rock material. Exam tip: remember it as the main term for soil formation.

Step 3

Exam Tip

मृदा जनन वह प्रक्रिया है जिसमें चट्टानी पदार्थ से मिट्टी बनती है। परीक्षा में इसे soil formation का मुख्य शब्द याद रखें।

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मृदा निर्माण में मूल चट्टान की भूमिका क्या होती है?

What is the role of parent rock in soil formation?

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Correct Answer

C. यह मिट्टी को खनिज पदार्थ देती हैIt provides mineral matter to soil

Step 1

Concept

Parent rock breaks down to form mineral particles of soil. Exam tip: treat parent material as the base of soil.

Step 2

Why this answer is correct

The correct answer is C. यह मिट्टी को खनिज पदार्थ देती है / It provides mineral matter to soil. Parent rock breaks down to form mineral particles of soil. Exam tip: treat parent material as the base of soil.

Step 3

Exam Tip

मूल चट्टान टूटकर मिट्टी के खनिज कण बनाती है। परीक्षा में parent material को मिट्टी का आधार मानें।

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मिट्टी के निर्माण में जलवायु किस प्रकार सहायता करती है?

How does climate help in soil formation?

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Correct Answer

A. यह अपक्षय और जैविक क्रिया को प्रभावित करती हैIt affects weathering and biological activity

Step 1

Concept

Temperature and rainfall change the speed of weathering. Exam tip: write climate as a major soil-forming factor.

Step 2

Why this answer is correct

The correct answer is A. यह अपक्षय और जैविक क्रिया को प्रभावित करती है / It affects weathering and biological activity. Temperature and rainfall change the speed of weathering. Exam tip: write climate as a major soil-forming factor.

Step 3

Exam Tip

तापमान और वर्षा अपक्षय की गति बदलते हैं। परीक्षा में जलवायु को प्रमुख मृदा निर्माण कारक लिखें।

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ढाल वाले क्षेत्र में मिट्टी पतली क्यों हो सकती है?

Why can soil be thin on sloping land?

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Correct Answer

D. क्योंकि बहता जल और गुरुत्व मिट्टी हटाते हैंBecause running water and gravity remove soil

Step 1

Concept

On slopes soil can be washed or moved away quickly. Exam tip: connect relief with soil thickness.

Step 2

Why this answer is correct

The correct answer is D. क्योंकि बहता जल और गुरुत्व मिट्टी हटाते हैं / Because running water and gravity remove soil. On slopes soil can be washed or moved away quickly. Exam tip: connect relief with soil thickness.

Step 3

Exam Tip

ढाल पर मिट्टी जल्दी बह या खिसक सकती है। परीक्षा में relief को मिट्टी की मोटाई से जोड़ें।

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समतल मैदानों में मिट्टी सामान्यतः अधिक गहरी क्यों बन सकती है?

Why can soil generally become deeper on flat plains?

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A. क्योंकि वहां पदार्थ का जमाव अधिक और कटाव कम हो सकता हैBecause material may accumulate more and erosion may be less there

Step 1

Concept

Flat areas give soil more chance to remain in place. Exam tip: connect plains with deeper soil.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि वहां पदार्थ का जमाव अधिक और कटाव कम हो सकता है / Because material may accumulate more and erosion may be less there. Flat areas give soil more chance to remain in place. Exam tip: connect plains with deeper soil.

Step 3

Exam Tip

समतल भाग में मिट्टी को टिकने का अवसर अधिक मिलता है। परीक्षा में मैदान को गहरी मिट्टी से जोड़ें।

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मृदा निर्माण में समय का महत्व क्या है?

What is the importance of time in soil formation?

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Correct Answer

B. लंबे समय में मृदा परतें अधिक विकसित हो सकती हैंOver long time soil horizons may develop more

Step 1

Concept

Soil takes a long time to form and horizons develop slowly. Exam tip: connect time factor with horizon development.

Step 2

Why this answer is correct

The correct answer is B. लंबे समय में मृदा परतें अधिक विकसित हो सकती हैं / Over long time soil horizons may develop more. Soil takes a long time to form and horizons develop slowly. Exam tip: connect time factor with horizon development.

Step 3

Exam Tip

मिट्टी बनने में बहुत समय लगता है और परतें धीरे विकसित होती हैं। परीक्षा में time factor को horizon development से जोड़ें।

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मिट्टी में ह्यूमस मुख्यतः किससे बनता है?

Humus in soil mainly forms from what?

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Correct Answer

C. सड़े गले पौधों और जीवों के अवशेषों सेDecayed remains of plants and organisms

Step 1

Concept

Humus forms from decomposition of organic matter. Exam tip: connect humus with soil fertility.

Step 2

Why this answer is correct

The correct answer is C. सड़े गले पौधों और जीवों के अवशेषों से / Decayed remains of plants and organisms. Humus forms from decomposition of organic matter. Exam tip: connect humus with soil fertility.

Step 3

Exam Tip

ह्यूमस जैविक पदार्थ के अपघटन से बनता है। परीक्षा में humus को soil fertility से जोड़ें।

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मिट्टी की ऊपरी परत में जैविक पदार्थ अधिक क्यों होता है?

Why is organic matter higher in the top layer of soil?

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Correct Answer

D. क्योंकि पौधों के अवशेष ऊपर ही अधिक मिलते हैंBecause plant remains are mostly added at the surface

Step 1

Concept

Leaves and organism remains are added to the top layer. Exam tip: understand topsoil as a humus-rich layer.

Step 2

Why this answer is correct

The correct answer is D. क्योंकि पौधों के अवशेष ऊपर ही अधिक मिलते हैं / Because plant remains are mostly added at the surface. Leaves and organism remains are added to the top layer. Exam tip: understand topsoil as a humus-rich layer.

Step 3

Exam Tip

ऊपरी परत में पत्तियां और जीव अवशेष मिलते हैं। परीक्षा में topsoil को humus rich परत समझें।

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मृदा प्रोफाइल का अर्थ क्या है?

What does soil profile mean?

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Correct Answer

A. मिट्टी की ऊर्ध्वाधर परतों का क्रमThe vertical arrangement of soil layers

Step 1

Concept

A soil profile shows different layers of soil. Exam tip: understand profile as a vertical section.

Step 2

Why this answer is correct

The correct answer is A. मिट्टी की ऊर्ध्वाधर परतों का क्रम / The vertical arrangement of soil layers. A soil profile shows different layers of soil. Exam tip: understand profile as a vertical section.

Step 3

Exam Tip

मृदा प्रोफाइल में मिट्टी की अलग अलग परतें दिखाई देती हैं। परीक्षा में profile को vertical section समझें।

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मृदा की परतों को क्या कहा जाता है?

What are soil layers called?

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Correct Answer

B. क्षितिजHorizons

Step 1

Concept

Soil horizons are different developed layers of soil. Exam tip: connect horizons with soil profile.

Step 2

Why this answer is correct

The correct answer is B. क्षितिज / Horizons. Soil horizons are different developed layers of soil. Exam tip: connect horizons with soil profile.

Step 3

Exam Tip

मृदा क्षितिज मिट्टी की अलग अलग विकसित परतें होते हैं। परीक्षा में horizons को soil profile से जोड़ें।

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