Canadian__Ninja
Canadian__Ninja t1_iuab5yb wrote
Reply to Eli5 why do pregnancy testers not have a yes or no indication on the screen instead of the symbols and then matching them? by googleimages69420
It's cheaper to make it without the text, both from a tech standpoint in that it's more work and because you don't need to understand language x to be able to use it. I don't have experience with them but I'd imagine a French woman would be able to seamlessly use a pregnancy test made in Czechia for instance.
Canadian__Ninja t1_iy4ju4x wrote
Reply to ELI5: why fish can’t breathe in air despite air having plenty of oxygen by CR1MS4NE
There's oxygen in water, why can't you breathe underwater?
The answer to your question though is that fish bodies, in particular their gills, cannot handle being out of water and thus can't handle breathing and getting oxygen through their blood.