If two countries went into a nuclear war example china and USA why would life on earth cease from existence?

Answer 1

No.. But life as we know it would end..

Answer 2

It is unlikely that a nuclear war would eliminate all life on Earth. I'm sure the cockroaches would survive, as would countless species of bacteria, mold, fungus, etc. However, warm-blooded bodies like yours and mine will be S.O.L. after a prolonged nuclear exchange. Discounting the localized destruction that would reign in the participant nations, let's say you live somewhere that didn't take part in the fun of nuclear war, like Australia.
If you were an Aussy in the aftermath of nuclear holocaust, you'd skip the enjoyment of seeing your local parkland glow in the dark, and instead get to watch as the sun slowly, over the course of a few weeks, became dimmer and dimmer in the sky. At first it would be no big deal, although people who spent a lot of time outside would get to enjoy the early stages of radiation sickness (nausea, fatigue, dull bone pain) pretty shortly after the first radioactive rain fell. After that, you'd get to see the next season's crops fail on every outdoor farm around the world (not enough light, thanks to all the dust kicked up by 2000 nuclear bombs) and you and everyone you know would get to learn what it feels like to starve to death, assuming you didn't get killed by a roaving mob of starving schoolchildren. A few small populations might survive for years or decades in fall-out shelters, but it would take longer than that for the sun, and anything edible, to return. Unless someone's got a secret underground city complete with artificial lighting for it's groovy greenhouses and all powered by geothermal energy, the last human would probably die less than 50 years after the missles start to fly.

Cheery, huh?

Answer 3

The part that can not be eliminated from nuclear war is the amount of debris that will be put into the atmosphere. The more bombs the more debris. All it took was one meteor off the coast of Mexico to kill the dinosaurs and change life on earth forever. Get the message.
Maybe it will be insects that rule the earth next time around.

Answer 4

radioactive fall out, nuclear winter, there are more reason. sure the main destruction would be where the bombs / missiles struck, but the massive amount of debris in the atmosphere would block at least part of the sun light for years to come, but the biggest is the massive amounts of radioactive fallout that would descend everywhere around the world effectively poisoning the world.

Answer 5

The answer is no all life Will not end,we drooped a few already all life did not end.Soon we will fight China it already has started ,but when it does China will lose,but they will hurt us bad,and set us up maybe to lose one,it's time.Now the list of cities I would not Miss is Washington,L.A. New York ,THE Mortar City Newark ,The windy city.Boston

Answer 6

First of all you will not even have time to realize this when it happens!

Answer 7

all humans will be gone. including you. as for me i will take a train to alaska and hide,duck,andcover !!!

Answer 8

It wouldn't, so go ahead and launch? Good idea.

Answer 9

It probably wouldn't.