Lets suppose the Earth weighs 100,000 lbs. (just follow along).
I want to build a car from raw materials. The car will weigh 4000 lbs.
Does the the weight of the Earth change at that point or do the materials of the car equal the final weight of the car?
Same with humans. A baby weighs 10lbs at birth but when grown is 250lbs.
I suppose my question is that is the Earth’s weight a set weight or does is fluxuate barring any meteors an space junk.
In: 1
When you dig up a rock, that rock is still on Earth. Whether you want to count it as part of “Earth’s weight” or not is up to you but the total weight of the system does not change.
When a human grows, all of that extra weight comes from plant matter and air and water that was already on Earth. No extra weight.
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