What concept is introduced in relation to natural processes such as cloud formation, rain and the creation of fresh water from saline water ?बादल निर्माण, वर्षा और खारे पानी से ताजे पानी के निर्माण जैसी प्राकृतिक प्रक्रियाओं के संबंध में कौन-सी अवधारणा पेश की गई है ?
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Correct answer: B. Saturation and super-saturation of solutionsसमाधानों की संतृप्त और अति-संतृप्त
Explanation
Clouds form when air becomes saturated (and super-saturated) with water vapour, which condenses into droplets that fall as rain; evaporation leaves salts behind, giving fresh water from saline water. The concept used is saturation and super-saturation (the water cycle itself is a reversible physical change, not an irreversible one).बादल तब बनते हैं जब वायु जलवाष्प से संतृप्त (और अति-संतृप्त) हो जाती है और वाष्प संघनित होकर बूँदें बनाती है जो वर्षा के रूप में गिरती हैं; वाष्पन में लवण पीछे रह जाते हैं और खारे पानी से मीठा पानी मिलता है। प्रयुक्त अवधारणा संतृप्तता और अति-संतृप्तता है (जल-चक्र स्वयं उत्क्रमणीय भौतिक परिवर्तन है, अपरिवर्तनीय नहीं)।More Environmental Studies (EVS) questions
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