• Question: What tiny changes would mean that everyone on earth would die?

    Asked by Zealousy to Chris, Josh, Rebecca, Rob, Susan on 26 Jun 2015.
    • Photo: Rebecca Dewey

      Rebecca Dewey answered on 26 Jun 2015:

      There are very few different types of amino acid-if you removed one then we might not be able to absorb nutrients from food any more.

      Or if all the carbon dioxide in the atmosphere (about 0.5%of air) turned to carbon monoxide, then our red blood cells would stop being able to transport oxygen and we would die.

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