On a sunny summer day at noon, justin measures the water temperature of a lake and the temperature of the surface of the soil surrounding the lake. what would justin be most likely to find?

The answer is; The  temperatures on land around the lake were higher than those above the lake.

This is because water has a high specific heat capacity (compared to most other elements) and therefore requires more sunlight energy, compared to land, to raise the temperature of a unit measure of water by a degree centigrade/ Fahrenheit  

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.