The "limestone" is supported by the rock cycle.
Snails are present in most of the world, so it is not a surprise to discover that they dwell in diverse habitats. Some of them are comfortable in the desert while others live in ditches and cooler climates. These include mountain areas and even marshes
I think its A because the small size , shape and the methods of movement have nothing to do with the environments it can survive in <span />
