Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

Why is water vapour alone not always enough for cloud formation?

Answer and explanation

Correct answer: Because saturation, cooling and condensation nuclei may also be needed

Correct answer: A. A cloud is made of very small water droplets and/or ice crystals suspended in the atmosphere. Water vapour is the raw material, but invisible vapour must first reach saturation or become very close to saturation. Rising air usually expands and cools; cooling lowers the amount of vapour the air can hold. Once saturation is reached, condensation can begin. In the atmosphere, vapour commonly condenses on tiny particles such as dust, salt or other aerosols called condensation nuclei. A is correct because it includes the important conditions. B is wrong because vapour supplies the water for clouds. C is wrong because clouds are not merely smoke, although particles can assist condensation. D is wrong because clouds form within air and are affected by its motion. Memory cue: cloud formation needs moisture, cooling and a surface for condensation—not vapour alone.

Related tags

Cloud FormationCondensation NucleiSaturationClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.