Why is Pepe the frog sad?!?!?!

Becquerel expected to find ( he developed the photographic plate that had sun-exposed minerals on top of it. becquerel expected to find ( he developed the photographic plate that had been in the closed drawer.

Which process transfers heat from inside earth to its surface? convection currents in mantle pulling away of tectonic plates drawing in of tectonic plates convection currents in crust

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.