Answer:
It is between 84 and 60 million years old
Explanation:
Since the sandstone is on top of shale which has ashes 84 million years old and both are cut by pluton of gabbro which is 60 millions of years old we can conclude that the sandstone layer is between 84 and 60 million years old.
Gabbro originated in shale and went into sandstone. Gabbro is also found as plutons associated with continental volcanism. Due to its variant nature, the term "gabbro" may be applied loosely to a wide range of intrusive rocks, many of which are merely "gabbroic".
Any method of determining whether an event or object is older or younger than other events or objects. The idea that younger rocks lie above older rocks in and undisturbed layer. Any method of measuring the age of an event or object in years. Naturally preserved evidence of animal activity.
The author illiterates that the town would be negatively affected by the factory because it was going to be a lot of smog going every where and into the towns and that's not good for the peoples health.
Answer:
Some people like to stand up in the morning and pledge. Some people think it's a joke and do not take it seriously. But you really know it means nothing to someone when they put their hand on the wrong side of their chest and start laughing, thinking that that mistake must've been funny or something.
Explanation: