Considering the ocean has been receiving solar energy

Considering the ocean has been receiving solar energy every day,
for thousands of years, why is the modern ocean's average
temperature still cold (around 3,5 C)? Respond based on the heat
budget.0 [G2: rephrase focus on why ocean more or less at steady
state - leads to balanced heat budget]
The total flux of energy into and out of the ocean should be zero.
According to the ICOADS dataset, what is the accuracy of the
mean flux of the ocean when averaged over all the seas surface?
[G1 Hard to remember these details]

Is solar output constant?
Match the major terms of the heat budget at the sea surface to its
definition.
1 Insolation `_ 2 ___Net flux of infrared radiation from the sea

2. Net infrared radiation __ 3 __The flux of heat out of the sea due to
conduction
3. Sensible heat flux __ 4 __ The flux of energy carried by evaporated
water
4. Latent heat flux __ 5 _ The flux of energy carried away by
currents
5. Advection _ 1 ___ The flux of solar energy into the sea
Assignment 4: Chapter 6 of Stewart
What drives the temperature and depth variability of the mixed
layer?
Indicate which of the following would tend to deepen or shallow the
mixed layer?
[G1 more specificity in the question, G2 same]
How do aerosols affect sea surface temperature measurements
made by satellites?
[G2 is this one of the most important topics in the chapter?]
.

Conductivity [ G2 other options?]
Sunlight in the ocean is important because:
a) It heats sea water, warming the surface layers
b) It provides energy required by phytoplankton
c) It is used for navigation by animals near the surface
d) Reflected subsurface light is used for mapping chlorophyll
concentration from space
e) All of the above
The range of depths where the ocean’s temperature gradient is greatest
is called __________.
Choose the equipment that can be used for the measurement of
Temperature and Salinity with depth:
I) Expendable Bathythermograph (XBT)
II) CTD
III) Nansen Bottle
IV) ADCP
V) Ekman Grab
Q: List three measurements needed to calculate the density of seawater.