Structure of coronavirus

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This is the structure of Corona virus.

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THE SUN

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The Solar System The solar system consist of a central star (the Sun) and the bodies that orbit it. These bodies include eight planets and their more than 160 known moons; dwarf planets; Kuiper Belt objects; asteroids; comets; and meteoroids. The Solar System also contains interplanetary gas and dust. The planets fall into two groups: four small rocky planets near the Sun (Mercury, Venus, Earth , and Mars); and four planets further out, the giants(Jupiter, Saturn, Uranus, and Neptune). Between the rocky planets and giants is the asteroid belt, which contains thousands of chunks of rock orbiting the Sun. Beyond Neptune is the Kuiper Belt and, more distant, the Oort Cloud. Most of the bodies in the planetary part of the Solar System move around the Sun in elliptical orbits located in a thin disc around the Sun's equator. All the planets orbit the sun in the same direction (anticlockwise when viewed from above) and all but Venus and Uranus also spin about their axes in this directio...
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Covid-19

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Information about COVID-19 Covid-19 was started from Wuhan of China and spread all over the world. it will mostly effect the persons under 10 years and above 60 years peoples. It will mostly attack the the respiratory system of the human body and causes in breathing problem. It will show its effects on the human body inside 14 to 15 days It will attack almost all the parts of our body. It will first attack to the the respiratory system and then it will slowly spread to all the parts and organs of our body. Precautions for covid-19   1. We must use mask. 2. We must wash our hands in every 20 minutes. 3. we must be away from containment zones and must not go out of house without any necessary work. 4. We must maintain social distancing. 5. Must eat healthy foods to maintain our immunity. Cure for covid-19 There is no vaccine for covid-19 till now.
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Human excretory system

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EXCRETORY  SYSTEM WHAT IS EXCRETION? There are various metabolic activities take place inside our body.As a result of which many wastes or  substances such as carbon-di-oxide, urea and excess water are formed.This process of removal of toxic wastes from our body of an organism from time to time is called excretion EXCRETION is the process of removal of metabolic wastes from the body of an o rganism through the excretory organs. EXCRETORY ORGANS OF HUMAN  BEINGS. Several organs take part in excretion in human being.Along with the lungs,skin,liver and kidneys are the chief excretory organs of the human body let's discuss about the excretory organs of the human beings  LUNGS Being a respiratory organ also serve as excretory organs because they help to get rid of carbon-di-oxide by the process of exhalation excess water also leaves the lungs as water vapour. KIDNEYS These are the main excretory organs which help in removal of nitrogenious,toxic wastes along with excess w...
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