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Main processes of heating the ocean water i.e:

A.	By convection of heat from the interior of earth	B.	By absorption of radiation from sun
C.	Both (a) & (b)	D.	None of these

Processes of cooling the ocean water include:

A.	Convection	B.	Evaporation
C.	Back radiation from surface	D.	All of them

The factors of world distribution of horizontal temperature of oceanic water are:

A.	Winds and latitude	B.	Latitude
C.	Longitude	D.	None of these

Average surface temperature of Alantic Ocean between the parallels of latitude is:

A.	5.60	B.	5.70
C.	5.80	D.	5.90

The temperature _____ as we go away from the equator:

A.	Unchanged	B.	Increase
C.	Decrease	D.	None of these

The temperature of equator is above 26

A.	23	B.	33
C.	43	D.	None of these

In tropical zone, the temperature is _______ in eastern parts and _________ in the western parts of ocean due to prevailing trade winds:

A.	Less, More	B.	More, less
C.	More, Intense	D.	None of these

One Cubic km of sea water contains as average of dissolved salts i.e. _________ million tons:

A.	41	B.	51
C.	61	D.	None of these

Some of the most important salts in the table are:

A.	Magnesium chloride	B.	Sodium chloride
C.	Magnesium sulphate	D.	All of them

10.

An estimated fraction that each year the rivers contributed in the ocean is:

A.	5.4 x 10 -	B.	5.5 x 10 -
C.	5.6 x 10-	D.	None of these