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              This picture is screenshot of ncert book             ·        Air in enter in body through nasal passage   ·        The pass through the trachea, rings of cartilage. ·        Rings of cartilage insure the air passes don’t collapse ·        After that rings of cartilage divide into two parts each parts enter in each lungs called bronchi ·        Bronchi divide into multiple of branches called bronchioles. ·        Each bronchioles contain   balloon like structure called alveoli ·        Air coming by passing the pathway of nose, trachea, larynx, pharynx, bronchi, bronchioles come into alveoli which is balloon like structur...

Process occur in digestion Ingestion – intake of food Digestion – the breakdown of food Absorption – the absorption of energy by figure like projection villa in small intestine Ejection – the releasing of waste materials                              This photo is the screenshot of class 10 ncert science text book   Releasing organ Name of gland /chemicals Affecting constituent Reference Mouth Saliva Starch It is verified by mixing starch and saliva Stomach HCl, pepsin, mucus   Protein Pepsin activate in acidic medium so HCl is release. Pepsin digests protein. Mucus protect the stomach from acid   Pancreas Trypsin Protein   It is act in small intestine. Lever Bile juice fat Break...

This is the news article of the Indian express 18.10.2018  We are live in the age of modernization in this age we are going to fully depend on machine. Machine plays a vital role in our life. To run the entire machine we need energy during production of energy we are taking the help of conventional source of energy and we are also cutting the tree to increase the industry to fulfill the demand of the increasing population this rise many environmental problem which is now became the catastrophic of the mankind. The main problem is air pollution which is caused by the emulsion of unburnt carbon particles which direct go into the lungs and cause many decease   and now after some time it make the source of acid rain and global warming . In this article we will discuss on the topic global warming. It is a general phenomenon which main function is to increase the temperature of earth. How it cause? It is caused by the green house gasses like methane, carbon etc....

·           Why sky looks blue from the earth?   Explanation - blue color has less wavelengths so it is more scattering because of scattering is inversely proportional to wavelength according to raylish law of scattering  ·          Why red color is used in traffic signal? Explanation - due to more wavelengths it scatters least ·          Why we use convex mirror as rear view mirror? Explanation - it always form virtual and erect image and cover the large area ·          Why sky looks black from the space? Explanation - In space there is no air so scattering of light can’t take place ·          why the object looks up in the water? Explanation - it is due to refraction of light ·          Why diamond is brighter t...

ASHISH KUMAR GUPTA  We are so much familiar with the force and energy in our daily life but what does these two words mean? It is a question of science. At first we understand what is force? The elementary definition of force is the push or pull is called force. Then what is energy? It is nothing but a form of capacity who give the courage to apply the force on any object. Now we understand the type of force there are mainly two type of force 1)      Contact force - The force apply on a body by contact of object is called contact force 2)      Noncontact force – the force apply on the body without contact of object Types of contact force Muscular force – the force apply by the muscles of the body is called muscular force Spring force – The restoring force which is apply by the spring is called spring force Type of non contact force Gravitational force – Everybody is the universe attract each other the force ap...

There are 118 elements found in nature till now. There are two classification of element between metal and nonmetal. Physical properties of metal and nonmetal                              Metal It is hard It is good conductor of electricity It is malleable It is ductile It is sourness It is lustrous                           Nonmetal It is soft It is bad conductor of electricity It is not malleable It is not ductile It is not sourness It is not lustrous These are the general classification of metal and nonmetal by its physical property. But we must know the chemical properties of metal and nonmetal. Malleable – it is a property of metal to change in a thin sheet Du...