गरज के साथ आने वाले तूफान (Thunderstorms) और भीषण बिजली कड़कने की घटनाएं आमतौर पर किस प्रकार के बादलों से उत्पन्न होती हैं?

At what approximate altitude range above the Earth's surface is the major concentration of atmospheric ozone (ozonosphere) found?

Identify the type of cloud based on the following characteristics: I. They look like cotton wool. II. They exist in patches and have a flat base. III. They are formed generally at a height of 4 to 7 km. Select the correct answer: