1 [Rhetoric] is that art or talent by which discourse is adapted to its end. ' 2 Rhetoric' . . . refers but to 'the use of language in such a way as to produce a desired impression upon the hearer or reader.'.
If not, drop me a message! 24 Hours after last dive. As far as I know, there is no problem with going scuba diving straight after flying. This is because when you descnd in a plane and then in the water, you are on-gassing and your body is absorbing nitrogen.
The answer varies by species. Harbor seals can sleep underwater for as long as 20 minutes. To stay under this long, they slow their heartbeat way down. They usually only dive for three or four minutes at a time. Some seals in the Arctic (Weddell seals) spend a lot of time under the ice and can hold their breath for an hour, and maybe much longer than that. How deep do they dive? Harbor seals can dive up to 90 meters (300 feet), but they usually only go three meters (ten feet) below the surface.