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What would happen if a large asteroid landed in a big city?
millions of people would die instantly
What would happen if a large asteroid landed in the ocean?
there would be a giant tsunami
What would happen if a large asteroid landed in a remote area?
the explosion would send a huge cloud of dust into the Earth`s atmosphere
What would be if a large asteroud collided with the Earth?
It would be a disaster
Colliding with an asteroid would cause massive ___________
destruction
If there was a huge tsunami, thousands of cities around the world would ____
flood
Why a huge cloud of dust in the Earth`s atmospehere would be very bad?
It would block the light and heat from the sun. Crops wouldn`t grow and it would be impossible to feed people.
What happened about 65 million years ago?
Most life on Earth disappeared ....
What happened in 1908?
Asteroid exploded in the sky above central Siberia
What could we do to stop the asteroid?
blow up the asteroid with nuclear weapons or make it change direction
What are the disadvantages of blowing up the asteroid?
It could break into smaller pieces ....
What are the disadvantages of changing the asteroid direction?
Nobody knows which way would work the best, it`s impossible to test the technology
