What would the world be like without krypton?

Answer 1

If the element krypton disappeared from the Earth it would be hardly noticeable.

Since Krypton makes up about 0.000114% of the atmosphere the atmosphere would decrease by that fraction.

The effect on atmospheric pressure would be about what you would get from the elevation change of putting on a pair of sneakers with a 1 cm thick sole.

Since krypton is essentially non-reactive no one would notice the loss of any compounds (no krypton compounds in the first place).

There would be a TINY decrease in the amount of inert gas available for inert gas welding. The cost per weld might go up a fraction of a cent.

The biggest effect would be scientists freaking out wondering where that missing element in the Periodic Table went to.

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Attempted humorous answer:

But then you would die superman would be like wooah and we would turn green with yellow boils and they we would get set on fire!!!

Answer 2

Without potassium we would all die. This is because we use potassium for pumping the heart. Without potassium, our hearts would stop and we would die.

Answer 3

no one would notice