A.At one time a gallon depended on what was being measured, so the UK decided to define it based on an 'ale gallon', whereas the US used a 'corn gallon'.
Q.How big do corn snakes tank need to be
A.The recommended size tank for a adult corn snake is 20-30 gallons, with a secure locking screen top to prevent escape. Corn snakes like places to hide.
Q.Why can't we digest sweetcorn?
A.The skin of sweet corn is composed of cellulose which is indigestible to humans. Specifically, humans don't have the requisite bacteria to break it down.