Air refers to the Earth's atmosphere. Air is a mixture of many gases and tiny dust particles. It is the clear gas in which living things live and breathe. It has an indefinite shape and volume. It has mass and weight, because it is matter. The weight of air creates atmospheric pressure. There is no air in outer space. Air is a mixture of about 78% of nitrogen, 21% of oxygen, 0.9% of argon, 0.04% of carbon dioxide, and very small amounts of other gases. There is an average of about 1% water vapour. Since early times, air has been used to create technology. Ships moved with sails and windmills used the mechanical motion of air. Aircraft use propellers to move air over a wing, which allows them to fly. Since the late 1900s, air power is also used to generate electricity. Air is invisible: it cannot be seen by the eye, though a shimmering in hot air can be seen. Air is one of the four classical elements in Greek theory. It was considered an intervening element, somewhere between fire and water, and the driving force for the birth of the cosmos. We have chosen two places- Srinagar and Chennai. So now lets know about them but before that lets know the difference between surface temperatures and precipitation types.
Difference between Surface Temperatures and Precipitation Types
What is Forecast Map? Forecast map also known as synoptic weather chart, displays various meteorological features across a particular area at a particular point in time and has various symbols which all have specific meanings. Such maps have been in use since the mid-19th century and are used for research and weather forecasting purposes. Maps using isotherms show temperature gradients, which can help locate weather fronts. Isotach maps, analyzing lines of equal wind speed, on a constant pressure surface of 300 or 250 hPa show where the jet stream is located. Use of constant pressure charts at the 700 and 500 hPa level can indicate tropical cyclone motion.
Forecast Map of Srinagar- According to report no. 1 we can observe Srinagar's weather report. For the next 7 days (4-10 October) Srinagar is going to be partially cloudy. There are chances of- •Sunny- Srinagar has 70-80% chances of sunny weather. •Cloudy- Srinagar has 20-30% chances of cloudy weather. Srinagar has chances of 25% precipitation.
Forecast Map of Chennai- According to report no. 2 we can observe Chennai's weather report. For the next 7 days (4-10 October). Chennai is going to be partially cloudy. There are chances of- •Thunderstorm- Chennai will face isolated and Scattered thunderstorm •Rain- Chennai have 60-80% chances of rain. The rate of humidity in Chennai will be 72-76%.