If a 100-meter meteoroid were to strike Earth\'s surface, about how big would th

Question

If a 100-meter meteoroid were to strike Earth's surface, about how big would the crater be? 100 meters, the same size as the impactor 10,000 m (10 km), 100 times as big as the impactor 500 meters, five times as big as the impactor 2000 meters (2 km), 20 times as big as the impactor It is the year 2870 and your great-great-great-....-greatgranddaughter has refined the orbit of asteroid 1950DA. She there is a 99% chance of 1950DA hitting Earth in 10 years (in 2880). Given that asteroid 1950DA is a rocky asteroid 1.2km in diameter, which method should your descendant propose to mitigate the chance of impact? Kinetic impact (Deep Impact 2) Nuclear deflection (Project Icarus) Laser ablation (The Alan Parsons Project) Blow it up - with nukes! (The Bruce Willis Scenario)

Explanation / Answer

13.Generally , a meteorite that strikes the Earth's surface forms a crater 12 to 20 times its size.

The size of the meteoroid is given as 100 -meters.

So the crater would be 12 * 100 =1200 to 20 * 100 =2000 m in size

2000 m is given in option D

So D is the right option

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