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"How much water us used during the production of an egg? 120 gallons"

This is the only one I feel comfortable commenting on specifically, but this is insanely wrong. A laying hen drinks about 16 ounces of water per day, eats a few ounces of food per day, and lays an egg every 1-2 days depending on the breed and the conditions.

Your quoted figure appears to be, quite literally, off by a factor of 1,000.

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It does sound a bit high, but to produce a pound of grain it takes about 150 gallons of water, and assuming about 1/2 pound of food eaten every 2 days it is about right.

As the previous poster said, a laying hen eats a couple of ounces a day, no where near a half a pound.

With a cursory google search, 1/4 pound of feed per day seems about typical, assuming 2 days per egg produced.

Maybe, a 'factory' hen that eats nothing but grain might do 1/4 pound of grain. But these hens will also produce very close to 1 egg a day, or about 9 eggs for every 10 days or so.

Also, apparently "rice" is a now a singular specific quantity.

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