Deep-sea trenches are found at convergent plate boundaries. (t/f)
What will be an ideal response?
Answer: t
Environmental & Atmospheric Sciences
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In order to provide an early warning system, which of the following is least helpful in trying to predict a tsunami?
A) Worldwide seismic networks that broadcast warnings based on an earthquake's potential for generating a tsunami B) Deploying warning buoys to detect small changes in sea level C) Monitoring earthquakes on land D) Considering the tectonic setting and type of plate boundary that is nearby
Environmental & Atmospheric Sciences
What element was found to be enriched in a thin clay layer marking the Cretaceous-Tertiary boundary at several sites around the world?
A) calcium B) uranium C) iridium D) niobium
Environmental & Atmospheric Sciences