What is rain Class 9?
Rain is droplets of water that are condensed as a result of evaporation. During the water cycle formation of clouds takes place. Rain is also called precipitation. Water is absorbed from different water bodies, a large amount of which vaporizes and enters the atmospheric air.
How are clouds formed short note?
The Short Answer: Clouds are created when water vapor, an invisible gas, turns into liquid water droplets. These water droplets form on tiny particles, like dust, that are floating in the air. These energetic molecules then escape from the liquid water in the form of gas.
How clouds are formed and bring us rain Class 9?
Answer. Clouds are formed when water vapor rises high up into the air. When it reaches cold air, the vapor turns back into droplets of water! When clouds get so full of water droplets that they can’t hold any more, the water falls back to the ground as rain!
How is rain caused Class 9?
Rain is formed by evaporation and condensation of water through water cycle. Acid rain is caused by the release of the gases like SO2 (sulphur dioxide) and NO2 (nitrogen dioxide) released from the emission of vehicles and combustion of fuels. These gases dissolve in rain water to form nitric acid and sulphuric acid.
What do different color clouds mean?
The color of a cloud depends primarily upon the color of the light it receives. The Earth’s natural source of light is the sun which provides ‘white’ light. This means the light waves that make up violets, indigo and blue have higher energy levels than the yellow, orange and red. …
What is the real color of the blood?
Human blood is red because of the protein hemoglobin, which contains a red-colored compound called heme that’s crucial for carrying oxygen through your bloodstream. Heme contains an iron atom which binds to oxygen; it’s this molecule that transports oxygen from your lungs to other parts of the body.
Why is the sky not purple?
The smaller the wavelength of the light the more the light is scattered by the particles in the atmosphere. This is because the sun emits a higher concentration of blue light waves in comparison violet. Furthermore, as our eyes are more sensitive to blue rather than violet this means to us the sky appears blue.