Does the Earth have a finite number of molecoles? if so, does stuff like trash and plastic take away from food and water on a molecular level?

Question

Is it true that once we die our atoms cycle through the system through decomposition? Are we are drinking dinosaur pee? Where do new atoms come from if we don’t have a finite number of building blocks? I feel like im confusing a bunch of different sciences but can someone please explain?

In: 6

Answer 1

Yes you are drinking water which used to be peed by dinosaurs all of the atoms are recycled over time some on a small local level and some on a more massive scale, material can be buried under the earth in huge sedimentary layers and when parts of the crust move towards each other one layer is forced down and then heats up and can be spewed out again as volcanic lava.