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6.4 Study of the Seas

Horizontales
The crew compartment
Self-contained underwater breathing apparatus
Is a device with an open tube that is dropped to the sea floor
Modern manned submersibles
Floating observation stations
Modern variants of the drift bottle
Verticales
One thermometer type is called
Is a highly maneuverable robot
Plastic tubes on a weighted line that is lowered into the ocean
Most important tool of the oceanographer is the
Is plunged into the sediment and is capable of extraction cores up to 27m long
Small research submarines
A breakthrough in submersible design was the invention of the
Capable of operation without any outside guidance or help
Is the primary method of determining the physical properties of water