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Daily Digest - February 26, 2018
 
Daily digest is your daily dose of knowledge. There are 365 topics and each day will cover a different topic. It gives valuable information on topics like physics, knowledge, emotions, entertainment & spirituality. Click on archive and view all the topics of the year.
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KNOWLEDGE
EARTH :-  

Today we are going to learn about our planet Earth.

Earth is 4.56 billion years old but life exist 3.7 billion years. The Earth is the only planet in the solar system where we find life.Children, can you tell why?

The most important reason is ,
  • The earth is at an ideal distance from the sun. It isn’t too hot nor too cold on the earth.
  • There is plenty of water on earth which is the most essential thing for life.
  • Oxygen is present in the atmosphere above the Earth.
More about the earth:
  • It is the third from the sun after Mercury and Venus.
  • The ocean takes the part of 71% (3/4 part)of the surface.
  • The atmosphere on the earth is composed of gases- nitrogen 78%, oxygen 21% and varying amount of water vapour.
  • The earth rotates on its axis and revolves around the sun.
  • Rotation makes the days and nights, while the revolution makes weather change.
  • One day of the Earth is of 23 hours & 56 minutes.
  • Average distance of the Earth from the sun is 93 million miles
  • It has 7 continents namely; North America, South America, Africa, Asia, Europe, Antarctica and Australia. One fourth part is occupied by the continents.
  • Oceans like; Arctic Ocean, Pacific ocean, Atlantic ocean, Antarctic ocean, Indian ocean.

Important fact about earth:

  • Earth was spinning very fast but its rotation is now becoming slow. As the earth loses its kinetic energy due to all forms of friction acting on it like tides, galactic, space dust, solar, wind, space weather, geomagnetic  storms etc so it is becoming slow.
  • Nature adaptation theory: as the earth environment changes, the one who adapts to the environment reproduces successfully otherwise gets extinct. E.g: Dinosaurs, some bird species have become extinct as they were not adapted to the environment.Human beings are well adapted to the environment. But environment is changing due to global warming.  As a result we are facing tsunami, storms, earthquakes, floods, droughts etc once in a month globally. We humans are not adaptable to the calamities like tsunami which happens due to change in the environment. Contribute to stop global warming by correcting your mistakes shown.
 

Amazing facts :-

The effect of global warming:

  • Earth’s balance is disturbed. The planet’s atmosphere and surface is warmed up.
  • More water is evaporated. Since water vapour itself is a gas it causes more warming. So the cycle continues.
  • Increased carbon dioxide in the atmosphere warms the surface and melts the ice near the poles.
  • Land and water takes the place of the ice. Both are less reflective than ice. So they absorb more solar radiation. May be some kinds of plants and animals become extinct (completely disappeared), Sea level will rise,  some area may become dry. Storms, drought, famine, flood may occur.
  • Many diseases will occur on Earth because of heat.
  • Global warming has affected many animals. Their lives are in danger

You know friends, due to the above given effects, after some years the earth will not be worth living.  Not worth living! Why will it be so? What will we do then?  I know you have been thinking of all these things. Well, let me explain you. The earth is getting warmer  and warmer day by day because of pollution and deforestation. So the day will come when the temperature on the earth will be so high that it won’t be worth living. This is what is calledGlobal warming. Tell me what would you doin such condition? Well, Scientists have already started thinking about this and that is  why we are exploring the space. We are also trying to trace the life on the other planets like Mars.

Children, its in your hand

  • To save yourself from Global Warming,
  • Grow more trees.
  • Beware of garbage monster. Dispose plastic, glass and other garbage separately.
  • Save energy: turn off the switch.
  • Tell your parents, replace old product as it consumes more electricity.
  • Use CFL bulb (Compact Fluorescent light).
  • Start rain water conservation system at home.
  • Use low flow shower and tap instead of high flow showers.
  • Walk down the distance instead of going by car.
  • In short, SAVE ENERGY, SAVE THE PLANET.

FACTS:- First dollar coin was issued in Bohemia. The fastest growing tree is eucalyptus. It can grow 10 meters a year. There is no land at all at the North Pole, only ice on top of sea.

 

Good thought:- Hi! Earthlings. Make the earth beautiful with plantation and not throwing the waste here and there and take care in disposing off the plastic waste to preserve soil

 
 
 
 
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