There hasn't been a test on that yet, it would also depend on how big the warheads carried were.
Four Times Over
not worth thinking about , a nuclear war would in itself be a chain reaction causing humanitys elimination . the earth cannot be destroyed but we can .
It may take a thousand of tons on TNT to pack a nuclear bomb. But to destroy the earth, it may take billions to trillions tons of TNT plus a nuclear igniter to blow the earth to bits of dust.
Less than the total number in existence right now ! Countries around the planet have enough nuclear warheads to destroy every living thing on earth many times over !
One
Once, because the first time The USA, UK, Canada and France will attack instantly after the first!
It depends on the size of the Nuclear device, anywhere from 5 square miles and up
Surprisingly few ! The 'super powers' have enough nuclear weapons between them - to destroy humanity many times over !
No. Earth is an example of many things, such as an uneven rock with water in its low places, but earth is not energy, least of all nuclear.
The tsunami destroyed many buildings and damaged nuclear reactors
Trillions of them, at least. Luckily for us, distances in space are huge, and the things that can destroy Earth are far away.
[object Object]