Class 11 Geography - Water (Oceans) - Temperature and salinity of ocean waters Hard Quiz

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वैश्विक जल चक्र में महासागर से शुद्ध वाष्प बनने के बाद भी स्थलीय जल असमान रूप से क्यों वितरित रहता है?

Why does terrestrial water remain unevenly distributed even after pure vapour forms from oceans in the global hydrological cycle?

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Correct Answer

A. क्योंकि वायुमंडलीय परिसंचरण और स्थलाकृति वर्षण को असमान बनाते हैंBecause atmospheric circulation and relief make precipitation uneven

Step 1

Concept

Oceanic vapour may be pure, but rainfall distribution depends on winds, pressure, and relief. For exams, do not explain water availability only by evaporation.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि वायुमंडलीय परिसंचरण और स्थलाकृति वर्षण को असमान बनाते हैं / Because atmospheric circulation and relief make precipitation uneven. Oceanic vapour may be pure, but rainfall distribution depends on winds, pressure, and relief. For exams, do not explain water availability only by evaporation.

Step 3

Exam Tip

समुद्री वाष्प शुद्ध हो सकती है, पर वर्षण का वितरण पवनों, दाब और स्थलाकृति पर निर्भर करता है। परीक्षा में water availability को केवल evaporation से न समझें।

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जल चक्र में वाष्पीकरण को प्राकृतिक desalination जैसा क्यों माना जा सकता है?

Why can evaporation be considered a natural desalination-like process in the hydrological cycle?

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Correct Answer

B. क्योंकि यह मुख्यतः जल अणुओं को वाष्प बनाता है और लवण पीछे छोड़ता हैBecause it mainly vaporises water molecules and leaves salts behind

Step 1

Concept

Dissolved salts usually remain in the ocean during evaporation. For exams, write this as the basic reason for fresh rain.

Step 2

Why this answer is correct

The correct answer is B. क्योंकि यह मुख्यतः जल अणुओं को वाष्प बनाता है और लवण पीछे छोड़ता है / Because it mainly vaporises water molecules and leaves salts behind. Dissolved salts usually remain in the ocean during evaporation. For exams, write this as the basic reason for fresh rain.

Step 3

Exam Tip

वाष्पीकरण में घुले लवण सामान्यतः समुद्र में रह जाते हैं। परीक्षा में fresh rain का मूल कारण यही लिखें।

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समुद्री वाष्पीकरण अधिक होने के बाद भी कुछ तटीय क्षेत्रों में कम वर्षा क्यों हो सकती है?

Why can some coastal areas receive low rainfall even with high oceanic evaporation nearby?

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Correct Answer

A. यदि descending dry air या unfavorable winds होंIf descending dry air or unfavourable winds occur

Step 1

Concept

Rainfall needs moisture along with uplift and cooling. For exams, remember evaporation alone does not make rainfall.

Step 2

Why this answer is correct

The correct answer is A. यदि descending dry air या unfavorable winds हों / If descending dry air or unfavourable winds occur. Rainfall needs moisture along with uplift and cooling. For exams, remember evaporation alone does not make rainfall.

Step 3

Exam Tip

वर्षा के लिए नमी के साथ uplift और cooling भी चाहिए। परीक्षा में evaporation alone rainfall नहीं बनाता याद रखें।

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जल चक्र में जल का ocean-atmosphere-land pathway किस बात को सबसे स्पष्ट करता है?

What does the ocean-atmosphere-land pathway most clearly show in the hydrological cycle?

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Correct Answer

A. पृथ्वी तंत्रों की परस्पर निर्भरताInterdependence of Earth systems

Step 1

Concept

Water connects oceans, atmosphere, and land into an active system. For exams, keep an integrated Earth-system perspective.

Step 2

Why this answer is correct

The correct answer is A. पृथ्वी तंत्रों की परस्पर निर्भरता / Interdependence of Earth systems. Water connects oceans, atmosphere, and land into an active system. For exams, keep an integrated Earth-system perspective.

Step 3

Exam Tip

जल महासागर, वायुमंडल और स्थल को एक सक्रिय तंत्र में जोड़ता है। परीक्षा में integrated Earth system perspective रखें।

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जल चक्र में global water balance में oceans का double role क्या है?

What is the double role of oceans in the global water balance of the hydrological cycle?

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Correct Answer

A. वे सबसे बड़ा जल भंडार और मुख्य evaporation source हैंThey are the largest water store and major evaporation source

Step 1

Concept

Oceans both store water and supply moisture through evaporation. For exams, remember the storage plus flux role.

Step 2

Why this answer is correct

The correct answer is A. वे सबसे बड़ा जल भंडार और मुख्य evaporation source हैं / They are the largest water store and major evaporation source. Oceans both store water and supply moisture through evaporation. For exams, remember the storage plus flux role.

Step 3

Exam Tip

महासागर जल जमा भी रखते हैं और वाष्पीकरण से नमी भी देते हैं। परीक्षा में storage plus flux role याद रखें।

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जल चक्र में salinity और precipitation के संबंध को सही ढंग से कैसे समझेंगे?

How should the relation between salinity and precipitation be correctly understood in the hydrological cycle?

Explanation opens after your attempt
Correct Answer

A. समुद्री लवण सामान्यतः evaporation में पीछे रह जाते हैं, इसलिए वर्षा अपेक्षाकृत मीठी होती हैSea salts usually remain behind during evaporation, so rain is relatively fresh

Step 1

Concept

Water vapour does not carry salts on a large scale. For exams, remember the reason for precipitation freshness.

Step 2

Why this answer is correct

The correct answer is A. समुद्री लवण सामान्यतः evaporation में पीछे रह जाते हैं, इसलिए वर्षा अपेक्षाकृत मीठी होती है / Sea salts usually remain behind during evaporation, so rain is relatively fresh. Water vapour does not carry salts on a large scale. For exams, remember the reason for precipitation freshness.

Step 3

Exam Tip

जल वाष्प लवणों को बड़े पैमाने पर साथ नहीं ले जाती। परीक्षा में precipitation freshness का कारण याद रखें।

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जल चक्र में watershed management का मुख्य उद्देश्य क्या हो सकता है?

What can be the main objective of watershed management in the hydrological cycle?

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Correct Answer

A. Runoff घटाना, recharge बढ़ाना और soil-water conservation करनाReducing runoff, increasing recharge, and conserving soil-water

Step 1

Concept

Watershed management helps retain water and improve recharge within a basin. For exams, remember the conservation objective.

Step 2

Why this answer is correct

The correct answer is A. Runoff घटाना, recharge बढ़ाना और soil-water conservation करना / Reducing runoff, increasing recharge, and conserving soil-water. Watershed management helps retain water and improve recharge within a basin. For exams, remember the conservation objective.

Step 3

Exam Tip

Watershed management जल को basin में बेहतर तरीके से रोकने और recharge करने में मदद करता है। परीक्षा में conservation objective याद रखें।

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