*Impact of Asteroid on the earth// What
if asteroid hits on the earth?
Our universe
The universe is miracle of super natural power. We can see millions of stars, planets, sub planets, asteroids, meteors, meteorites, comets and many more celestial bodies. There are many constellations found in the sky like Ursa Major or Greater Bear or Great Bear, Orion, Cassiopeia, Taurus, Leo, Scorpio, Crux etc. These are located in different galaxies in the sky. A few celestial bodies can be seen with naked eyes from earth but most of them are beyond the reach of our vision.
Asteroid in our solar system
Milky Way galaxy is one of the well
known galaxies in the universe. Solar System is found in this galaxy. The sun
and its eight planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus,
and Neptune), asteroids, meteors and comets together form solar system. The sun
occupies the central position and its other family members move around it.
Except Venus all other planets moves from west to east direction on their
orbits. But the Venus goes from east to west around the sun on its orbit. The
moving of these planets around the sun is known as revolution.
What is asteroid in our solar system?
Asteroids are found between the orbits
of Mars and Jupiter. These are the fragments of big planets created by
collision between planets ages ago. The asteroids are made of iron, nickel and
carbon. These are seen in the form of metallic rock revolving around the sun in
the solar system. These are numerous in number and attracted by gravitational
force of Jupiter. That is why asteroids do not fall or slips out from their
orbit. But sometimes these asteroids go beyond their orbit due to less impact
of gravitation force of Jupiter on it.
Why asteroids hit earth crust?
The earth pulls these fallen asteroids
towards it by its gravitational force. The fallen asteroids are rocks of fire. However
these wrecked rock fragments when enter into atmosphere of earth, smash into
ash owing to heavy friction between air and asteroid. Many asteroids are so big
to destroy completely in atmosphere and come to earth surface in small size.
Usually such small rock residuals cannot impact or hamper the earth and lives
on earth. If the size of residual asteroids is very big then it can damage and
destroy the lives as well as the whole vegetation on the earth.
Impacts of asteroid hit on earth crust
There can be immediate impact and long
term impact of asteroid hit on earth crust.
Immediate impacts:
1. Sudden increase in temperature of the
whole world.
2. Acid rain fall that can damage aquatic
life as well as land life.
3. Tsunami impact in ocean that can bring
mass destruction all over the world.
4. Earth quake impact on weak zone from
earth quake point of view.
5. Extinction of life both flora and fauna
closer to asteroid hit area.
6. Crater formation that may create imbalance on
surface of earth.
Long term impact:
1. Climate change drastically leads to
change in seasonal effect on life.
2. Mass extinction of life on earth like dinosaur
and other animals and birds.
Conclusion
Asteroid is a natural space object
which revolves around the sun on their orbits between mars and Jupiter. These are
very dangerous to our earth if they collide with it. But there is less chance
of such incident due to advancement of science and technology. There is no need
to worry about falling and striking of asteroid on earth. Thank you.

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