EXAM | COMPLETE QUESTIONS AND ANSWERS | 100% RATED
CORRECT | 100% VERFIED | ALREADY GRADED A+
The oceans cover approximately ________ percent of Earth's surface. - (answer)70
Which one of the following is not part of a passive continental margin? -
(answer)Continental Trench
All active continental margins terminate at deep ocean trenches. True or False? -
(answer)False
Which of the following is a feature found on topographic maps that is not found on
regular land maps? - (answer)Elevation
Most of the sediments deposited in deep sea fans are derived from ____________.
- (answer)Headwaters in fresh water drainage basins
The longest topographic feature that stretches around the globe for over 43,000
miles is the ______________. - (answer)Mid-ocean ridge
, The average salinity of seawater is ___________. - (answer)3.5%
The dissolved materials in seawater are thought to originate from chemical
weathering of rocks on the continents and also from ______________. -
(answer)outgassing of elements from Earth's interior
Salinity in the ocean is highest in regions where ___________ is high and
___________ is low. - (answer)evaporation; precipitation
The thermocline or area of rapid temperature change in the ocean is important
because _______________. - (answer)it forms a barrier to many types of marine
life that can only exist within certain temperature ranges
Thermoclines in the ocean are best developed at ________________. -
(answer)lower latitudes
The deep zone makes up about 80% of the ocean waters and it is characterized by
___________. - (answer)water with relatively uniform temperature and density
throughout