8. a deep-water wave far offshore has a wavelength of 14 meters. what is the speed of this wave? (use correct units in answer)
9. a tsunami is triggered by an earthquake, and moves off through part of the indian ocean that is 3.4 kilometers (3400 meters) deep. how fast is the tsunami moving?
10. jim moore discovered evidence that giant submarine landslides can trigger tsunamis while he was studying what island chain?
11. the old u. s. navy map showed the in the area being studied by jim moore. a) salinity b) bathymetry c) plate boundaries d) earthquake epicenters

land

explanation:

australia is the flattest continent, and it has vast plains.

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.