Which of the following regions of the ocean has the highest salinity? A.Atlantic

Question

Which of the following regions of the ocean has the highest salinity?

A.Atlantic bottom water at 30° N

B.Atlantic surface water at 30° N

C.Atlantic bottom water at 30° S

Which of the following regions of the ocean has the highest salinity?

A.Pacific surface water at 30° N

B.Pacific bottom water at 30° N

C.Pacific bottom water at 30° S

The water at 1000 m depth in the North Atlantic at 30° N originates from?

A.Atlantic surface water at 50° S

B.Atlantic surface water at 30° S

C.Atlantic surface water at 0° S

D.Atlantic surface water at 30° N

E.Atlantic surface water at 50° N

Which of the following regions has the highest difference in water temperature between the summer and the winter?

A.surface mixed layer in the Atlantic at 0° N

B.surface mixed layer in the Atlantic at 30° N

C.1000 m in the Atlantic at 30° N

D.Bottom water in the Atlantic at 30° N

Which of the following parameters has the lowest value?

A.Sigma

B.Sigma t

C.Sigma in situ

Which of the following statements (a-l) are true or false for samples collected at locations A-K?

A: surface mixed layer in the North Pacific near Hawaii in summer

B: surface mixed layer in the North Pacific near Hawaii in winter

C: surface mixed layer in the North Atlantic near Bermuda in summer

D: surface mixed layer in the North Atlantic near Bermuda in winter

E: 3000 m in the North Atlantic near Bermuda

F: 3000 m in the North Pacific near Hawaii

G: surface water in the North Pacific (50-60 °N)

H: surface water in the North Atlantic (50-60 °N)

I:    surface water in the Equatorial Pacific (0 °N)

J: 1000 m in the north Atlantic (30 °N)

K: 1000 m in the south Atlantic (30 °S)

a) [Ca2+]A < [Na+]I ;

b) [Cl-]F > [K+]B ;

c) [NO3-]J > [K+]B;

d) [Mg2+]J < [Mg2+]C ;

e) [B(OH)4-]J > [B(OH)4-]D

f) [Ca2+]B > [Zn+]K

g) [HCO3-]D < [PO43-]B ;

h) [SO42-]G < [SO42-]H

i) [Na+]A > [Mg2+]C     

j) [Sr2+]C < [Sr2+]E     

k) [Br-]K > [Br-]J

l) [F-]E < [F-]F

Explanation / Answer

1) option b is correct.

Surface of North Atlantic ocean has highest salinity.

salinity at the surface is more because of evaporation. So the salinity decreases with depth and then again starts increasing slightly.

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