2 of 6 what made drilling under new york city nearly impossible one hundred years ago? how has that changed…

2 of 6 what made drilling under new york city nearly impossible one hundred years ago? how has that changed? drilling under new york was impossible because the grain called schists was making it hard to drill through so they had to drill over it. now it was changed by

2 of 6 what made drilling under new york city nearly impossible one hundred years ago? how has that changed? drilling under new york was impossible because the grain called schists was making it hard to drill through so they had to drill over it. now it was changed by

Answer

Brief Explanations:

One - hundred years ago, schist rock made drilling under New York City difficult. Technological advancements likely changed this. Modern drilling equipment and techniques may be more effective at penetrating hard rock like schist.

Answer:

One - hundred years ago, the presence of hard schist rock made drilling under New York City nearly impossible. Now, technological advancements in drilling equipment and techniques have likely made it more feasible.