বায়ুমণ্ডলের উষ্ণতম স্তর কোনটি?
Answers
Answer:
what kaya likha ha
Answer:
Thermosphere(1200°C)
Explanation:
The thermosphere is often considered the "hot layer" because it contains the warmest temperatures in the atmosphere. Temperature increases with height until the estimated top of the thermosphere at 500 km. Temperatures can reach as high as 2000 K or 1727 ºC in this layer (Wallace and Hobbs 24). However, because the air is so thin, our bodies would not be able to detect this heat. Our bodies rely on the constant bombardment of air molecules to detect temperature. The air is so thin that a molecule will travel 1 kilometer before striking another molecule (Compare that with less than a millionth of a centimeter at the earth's surface). (Ahrens 14). At the top of the thermosphere, molecules will move 10 km before striking another molecule! (Ahrens 14) At this height, many lighter molecules have attained enough velocity to escape earth's gravity into outer space. The region where air molecules escape is known as the exosphere