When an earthquake occurs, energy radiates in all directions from its source. the source is also referred to as the a. seismic zone b. inertial point c. focus d. epicenter?

Gold is not now being extracted from seawater. why not? a. it would be too disruptive to marine life to develop any marine mineral resources b. there is no gold in seawater c. we don't know how to extract minerals from seawater d. it would be too costly and difficult to separate the small amount of gold from the very large amounts of halite and other minerals

Physical features of central america look at the map above which of the following is true

Based on what you know about speed of light and sound, which come/comes first in a thunderstorm