If a layer of sandstone lies on top of a layer of limestone in which a 300 million year old fossil is found and there are no nonconformist the layer of sandstone must be

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

because if the tool that you are using is not balanced it there would be false mass.