The average temperature of the surface water of the oceans is
22°C
15°C
26.7°C
18.6°C
C.
26.7°C
Which one of the following sediments deposits cover the largest of the ocean floor ?
Terrigenous
Cosmogenous
Biogenous
Hydrogenous
The ships on the North Atlantic sea route are forced to the South of the true great circle route by :
(1) Fogs associated with the contact of the cold Labrador current and the warm Gulf stream current.
(2) Icebergs brought southward by the Labrador current at certain seasons of the year.
(3) The strong polar icy winds from the North.
(4) The projecting landmass of Northeastern North America and the presence of warm Gulf Stream current.
(1) and (2) are correct
(1) , (2) and (3) are correct
(1) and (3) are correct
All are correct
The most common salt in the ocean is
Calcium chloride
Sodium nitrate
Sodium chloride
Calcium nitrate
Pelagic deposits consists of matter derived from algae and are mostly in the form of liquid mud known as
Blue mud
Ooze
Red mud
Coral Mud
Organic deposits made by living or dead organisms that form rock elevation like a ridge are known as
Corals
Canyons
Reefs
Guyots
The mechanism by which energy of solar origin is transported around the earth is
Ocean tides
Winds
Ocean waves
Tornado
The cold current flowing along the coast of Chile and Peru is known as
Agulhas
El-Nino
Humboldt
Canary