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Geography Soil formation processes MCQ Questions for Class 11 Science

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मृदा बनने में चट्टान का महीन कणों में टूटना किस प्रक्रिया से जुड़ा है?

The breaking of rock into fine particles during soil formation is related to which process?

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Correct Answer

B. अपक्षयWeathering

Step 1

Concept

Weathering changes rock into small particles and forms the base of soil. Exam tip: link the beginning of soil formation with weathering.

Step 2

Why this answer is correct

The correct answer is B. अपक्षय / Weathering. Weathering changes rock into small particles and forms the base of soil. Exam tip: link the beginning of soil formation with weathering.

Step 3

Exam Tip

अपक्षय चट्टान को छोटे कणों में बदलकर मिट्टी का आधार बनाता है। परीक्षा में मिट्टी निर्माण की शुरुआत अपक्षय से जोड़ें।

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मृदा निर्माण में मूल पदार्थ का सबसे सरल अर्थ क्या है?

What is the simplest meaning of parent material in soil formation?

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Correct Answer

A. जिस पदार्थ से मिट्टी विकसित होती हैThe material from which soil develops

Step 1

Concept

Parent material gives the mineral base to soil. Exam tip: remember parent material as the soil source.

Step 2

Why this answer is correct

The correct answer is A. जिस पदार्थ से मिट्टी विकसित होती है / The material from which soil develops. Parent material gives the mineral base to soil. Exam tip: remember parent material as the soil source.

Step 3

Exam Tip

मूल पदार्थ मिट्टी को खनिज आधार देता है। परीक्षा में parent material को soil source के रूप में याद रखें।

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मिट्टी निर्माण में जलवायु का कौन सा तत्व बहुत महत्वपूर्ण है?

Which element of climate is very important in soil formation?

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Correct Answer

C. वर्षाRainfall

Step 1

Concept

Rainfall affects weathering biological activity and leaching. Exam tip: connect rainfall with the soil formation factor.

Step 2

Why this answer is correct

The correct answer is C. वर्षा / Rainfall. Rainfall affects weathering biological activity and leaching. Exam tip: connect rainfall with the soil formation factor.

Step 3

Exam Tip

वर्षा अपक्षय जैविक क्रिया और धुलाई को प्रभावित करती है। परीक्षा में rainfall को soil formation factor से जोड़ें।

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ढाल पर मिट्टी आसानी से क्यों हट सकती है?

Why can soil be removed easily on a slope?

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Correct Answer

A. ढाल पर बहता जल और गुरुत्व अधिक प्रभावी होते हैंRunning water and gravity are more effective on slopes

Step 1

Concept

Slope helps soil move or wash downward. Exam tip: connect slope with soil erosion.

Step 2

Why this answer is correct

The correct answer is A. ढाल पर बहता जल और गुरुत्व अधिक प्रभावी होते हैं / Running water and gravity are more effective on slopes. Slope helps soil move or wash downward. Exam tip: connect slope with soil erosion.

Step 3

Exam Tip

ढाल मिट्टी को नीचे की ओर बहाने या खिसकाने में मदद करती है। परीक्षा में slope को soil erosion से जोड़ें।

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मिट्टी निर्माण में जीवों की मुख्य भूमिका क्या है?

What is the main role of organisms in soil formation?

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Correct Answer

B. वे जैविक पदार्थ मिलाकर ह्यूमस बनाते हैंThey add organic matter and form humus

Step 1

Concept

Remains of organisms decay and increase humus in soil. Exam tip: connect organisms with humus formation.

Step 2

Why this answer is correct

The correct answer is B. वे जैविक पदार्थ मिलाकर ह्यूमस बनाते हैं / They add organic matter and form humus. Remains of organisms decay and increase humus in soil. Exam tip: connect organisms with humus formation.

Step 3

Exam Tip

जीवों के अवशेष सड़कर मिट्टी में ह्यूमस बढ़ाते हैं। परीक्षा में organisms को humus formation से जोड़ें।

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मिट्टी बनने में लंबा समय क्यों लगता है?

Why does soil formation take a long time?

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A. क्योंकि चट्टान अपक्षय और परत विकास धीरे होते हैंBecause rock weathering and horizon development are slow

Step 1

Concept

Soil forms slowly and its layers develop over time. Exam tip: connect time with soil maturity.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि चट्टान अपक्षय और परत विकास धीरे होते हैं / Because rock weathering and horizon development are slow. Soil forms slowly and its layers develop over time. Exam tip: connect time with soil maturity.

Step 3

Exam Tip

मिट्टी धीरे धीरे बनती है और इसकी परतें समय के साथ विकसित होती हैं। परीक्षा में time को soil maturity से जोड़ें।

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ऊपरी मिट्टी पौधों के लिए क्यों सबसे उपयोगी होती है?

Why is topsoil most useful for plants?

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Correct Answer

C. इसमें ह्यूमस और पोषक तत्व अधिक होते हैंIt has more humus and nutrients

Step 1

Concept

Topsoil contains more organic matter and nutrients. Exam tip: understand topsoil as the fertile layer.

Step 2

Why this answer is correct

The correct answer is C. इसमें ह्यूमस और पोषक तत्व अधिक होते हैं / It has more humus and nutrients. Topsoil contains more organic matter and nutrients. Exam tip: understand topsoil as the fertile layer.

Step 3

Exam Tip

ऊपरी मिट्टी में जैविक पदार्थ और पोषक तत्व अधिक मिलते हैं। परीक्षा में topsoil को fertile layer समझें।

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मृदा प्रोफाइल किसे कहते हैं?

What is called a soil profile?

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Correct Answer

A. मिट्टी की ऊर्ध्वाधर काट में दिखने वाली परतेंLayers seen in a vertical section of soil

Step 1

Concept

A soil profile shows the vertical order of soil layers. Exam tip: treat profile as a vertical section.

Step 2

Why this answer is correct

The correct answer is A. मिट्टी की ऊर्ध्वाधर काट में दिखने वाली परतें / Layers seen in a vertical section of soil. A soil profile shows the vertical order of soil layers. Exam tip: treat profile as a vertical section.

Step 3

Exam Tip

मृदा प्रोफाइल मिट्टी की परतों का ऊर्ध्वाधर क्रम दिखाता है। परीक्षा में profile को vertical section मानें।

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मृदा क्षितिज किसे कहते हैं?

What are soil horizons?

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Correct Answer

A. मिट्टी की विकसित परतेंDeveloped layers of soil

Step 1

Concept

Different layers of soil are called soil horizons. Exam tip: connect horizons with soil profile.

Step 2

Why this answer is correct

The correct answer is A. मिट्टी की विकसित परतें / Developed layers of soil. Different layers of soil are called soil horizons. Exam tip: connect horizons with soil profile.

Step 3

Exam Tip

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

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ओ क्षितिज में कौन सा पदार्थ अधिक होता है?

Which material is abundant in the O horizon?

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Correct Answer

A. जैविक अवशेषOrganic remains

Step 1

Concept

The O horizon contains leaves and other organic remains. Exam tip: remember O as organic.

Step 2

Why this answer is correct

The correct answer is A. जैविक अवशेष / Organic remains. The O horizon contains leaves and other organic remains. Exam tip: remember O as organic.

Step 3

Exam Tip

ओ क्षितिज में पत्तियां और अन्य जैविक अवशेष पाए जाते हैं। परीक्षा में O को organic से याद रखें।

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