Adive instructor takes his students snorkeling. he tells them to look down through the shallow water and notice that there are more living yhings in the water and on the ocean floor than in any other place in the ocean. they are in the waterof the zone, over zone.

They are in the neritic zone of the photic zone, which is above the continental shelf, where the "drop-off" of the ocean is.

“other instruments such as gravimeters and magnetometers are also used in the search for petroleum. extracting crude oil normally starts with drilling wells into an underground reservoir. when an oil well has been tapped, a geologist (known on the rig as the "mudlogger") will note its presence. “ this is what i found on google i hope it