Баранова, Starlight 8. Учебник.Module 4. Russia

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It refers to a blast up into the sky from which fireballs reached the earth and set fire in a large forest area in Siberia, Russia.
1 Where and when did the Tunguska Event happen? (Near Vanavara in Siberia, Russia, on 30th June 1908)
2 How many people were killed by this strange event? (None)
3 What was the impact of the explosion? (A wildfire in a forest that flattened millions of trees and killed thousands of animals)
1 NS
2 F … it was recorded by instruments as far away as England …
3 T … thousands of reindeer and other wildlife were killed …
4 T … local people thought that the god Odgy had punished them …
5 F … releasing energy equal to about 1000 times the atomic bomb dropped on FUroshima …
6 F … there were no human victims though …
1 remote
2 blame
3 tremble
4 rip through
5 mighty
6 occur
I learnt that the Tunguska event happened in Siberia, Russia, on 30th June 1908.
I also learnt that luckily nobody was killed.
The releasing energy was equal to about WOO times the atomic bomb dropped on Hiroshima.
The event was recorded by instruments as far away as England.
The Tunguska event was the biggest unexplained explosion in recent history and it was very lucky that no one was killed. Many explanations have been suggested for this strange event. The local people, the Evenks, believed that they were being punished by the god Ogdy for living badly. Other people have suggested that it was caused by an alien spaceship exploding in the sky. It has even been suggested that it was a black hole passing through the earth.
The most likely explanation is that this was a comet or asteroid that entered the earth’s atmosphere and exploded because of the extreme temperature it reached. There was no crater left by something hitting the earth, so whatever it was exploded in the sky. Scientific surveys have shown lots of metals present in the soil in the area that are not usually found on earth. This means that whatever caused the event was probably some kind of rock from outer space.
We now know that much smaller events happen like this all the time, as there are many asteroids and comets that burn up in our atmosphere, or come close to earth. Scientists suggest that events as big as the Tunguska event happen around every three hundred years. If this event had happened over a city it would have completely destroyed it. Maybe the next time something like this crashes into the earth we will not be so lucky.
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