I love playing in the PvZ2 Arena. I notice that many of the users have M plants. I have seen plants at M35 or M57, and some plants are at level M141. How did they acquire M plants? They have an unfair advantage with plants leveled that high - I think there should be an Arena ...
(to go from mpa to atmospheric pressure, just multiply by 10). the horizontal axis has to do with how porous the rock is. the figure includes data using rock from many volcanic eruptions (including some real famous ones), but take a look at the blue stars - that's data from...