Unscenetears

People in the group already decided to be against it =\ hmm..any ideas if i were to be for it?

Okay, well I have to write a persuasive letter to the MTA (Metropolitan Transit Authority) demonstrating my concern over how the second avenue subway line project could impact the different types of metamorphic and sedimentart rocks found under the city if a new subway tunnel is built. Please help me..I've got nothing =\ and i also need reasons to why I should be against tunneling..

How does tunneling effect metamorphic and sedimentary rocks?...