carboniferous

"Her enthusiasm for the project was enormous; it was unusual and extraordinary for someone so typically reserved. "

"After the flood, we found strange deposits of dark, shiny rock in our backyard that were not part of the local soil. "

"The pencil's lead is made of carbon. "

"The vast forests of the Amazon basin are home to many rare animals. "

"Time stops for nobody.   the ebb and flow of time"

"The box containing my old toys was stored in the attic. "

"There was a period of confusion following the announcement."

"The vast expanse of the school's parking lot was nearly empty on a Tuesday morning. "

"The factory is producing thousands of cars every month. "

"A good article will cover the who, the what, the when, the where, the why and the how."

"The amount of atmospheric pollution threatens a health crisis."

"Children grow quickly."