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It feels good to eat food when we are very much hungry, at that time we put much more solid items in our mouth. But have you ever wondered , how these solid particles (food items) gets digested in our body. Here comes a interesting process of digestion. I am going to explain you the process of human digestion step by step , so stay tuned on this article. 1. Ingestion :-  The   process in which we take food inside the body through mouth is called ingestion. Intake of food (ingestion) 2. Digestion :-      The process in which complex food particles breaks down into simple small particles is called Digestion. Our digestive system i) Digestion in mouth:- Now, most  of you people will wonder after listening that the digestion of food starts in mouth. Isn't it true?  Our mouth contains saliva which itself contains an enzyme called salivary amylase  which breaks starch of food into sugar. ii) Digestion inside stomach:- After this the food enters into stomach throug

 Our sky is the most prestigious sky in the solar system because it is the only sky in this solar system which has this much differences in the composition of different type of gases in its atmosphere. Why is our sky blue? But have you ever wondered! why it is blue ? not black or any other colour. Well there is a interesting physics behind it. Before going on that concept let me tell you some history of it.( For main explanation just scroll down👇). In ancient times many Greek physicist wondered about the blue colour of sky. One of them gave his thesis that God is watching from the sky, due to his blue eyes the sky looks blue. But as the science grow his thesis was only thought to be mythological thought which not get much attention of the modern scientists. Much more investigation s happen and another theory came which says that sky colour is due to the blue colour of ocean. But this also gets rejected by the modern scientists because why does sky appears blue in deserts.