Question

E 1. Where is the Tunguska plateau?
2. What happened there in 1908?
3. How did people in Europe know that something happened there?
4. What usually happens when large meteors hit the earth?
5. Why was it so long before any scientist traveled to the Tunguska plateau to see what had happened?
6. What was the area like after nineteen years?
7. Can you give two explanations for the Tunguska explosion?
8. What's the problem with the meteor theory?
9. What is the most recent explanation for the explosion?
10. What do you think caused the Tunguska explosion?


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Answer 1

1. The Tunguska plateau is located in Siberia, Russia.
2. In 1908, a massive explosion, known as the Tunguska event, occurred there, resulting in the flattening of an estimated 80 million trees over an area of 2,150 square kilometers.
3. People in Europe noticed unusual atmospheric phenomena, such as bright nighttime skies, caused by scattered sunlight due to atmospheric particles from the explosion.
4. When large meteors hit the Earth, they can cause significant explosions due to the release of energy upon impact.
5. It took a long time before scientists traveled to the Tunguska plateau because of its remote location and the challenging conditions of the early 20th century in Siberia.
6. After nineteen years, the area showed signs of natural recovery, with new trees growing, but the landscape was still marked by the destruction.
7. Two explanations for the Tunguska explosion include a comet or asteroid impact and a hypothetical "mini-black hole" passing through Earth.
8. The problem with the meteor theory is the lack of a significant impact crater, which is typically associated with such events.
9. One of the most recent explanations suggests that a stony asteroid, rather than a metallic one, caused the explosion, leaving no substantial crater.
10. While the exact cause is not conclusively determined, a prevailing theory is that an asteroid or comet entered Earth's atmosphere, exploded in an airburst, and disintegrated before reaching the surface.

Answer 2

1. The Tunguska plateau is located in Siberia, Russia.

2. In 1908, a massive explosion occurred in the Tunguska region, which flattened around 2,000 square kilometers of forest.

3. People in Europe noticed an unusual brightness in the night sky, which was attributed to the event in Tunguska, as it caused atmospheric changes that were observable even in distant locations.

4. When large meteors hit the earth, they typically cause substantial damage, such as creating large craters, triggering earthquakes, and generating massive shock waves.

5. It took a long time before any scientist traveled to the Tunguska plateau to investigate because the region is remote and difficult to access, especially during the early 20th century when transportation and communication were not as advanced as they are now.

6. Nineteen years after the explosion, the area showed signs of recovery, with young trees and vegetation beginning to grow back.

7. Two explanations for the Tunguska explosion are a meteorite impact or the air burst of a comet.

8. The problem with the meteor theory is that no conclusive evidence of a large impact crater or substantial meteorite fragments has been found at the Tunguska site.

9. The most recent explanation for the explosion suggests that it was caused by the airburst of a stony asteroid or comet, which disintegrated before reaching the ground, causing the large explosion and subsequent devastation.

10. While the most widely accepted explanation is the airburst of a stony asteroid or comet, the exact cause of the Tunguska explosion remains a subject of scientific debate and inquiry.