How do we know the mass of a planet originally appeared on Quora - the knowledge sharing network where compelling questions are answered by people with unique insights. Answer by Geoffrey Widdison on ...

This is a preview. Log in through your library . Abstract Critical loads are used in the assessment of air pollution and regulation of the causative emissions to prevent or mitigate ecological damage.

Continental crust is buoyant compared with its oceanic counterpart and resists subduction into the mantle. When two continents collide, the mass balance for the continental crust is therefore assumed ...