Compared to air and water, most rock has a high density, which means it has?

The correct answer is - the rocks are more compact and have more mass per unit volume.

Explanation:

The density of a substance is a degree of their compactness or how closely their molecules are packed in it. The density can be explained as the mass of the substance of in it per unit volume.

The water and air are less compact or have less mass in every unit volume area in comparison to the rock as it is more compact and dense. It can be derived by the mass of the substance divided by the volume of the substance.

Thus, the correct answer is -  the rocks are more compact and have more mass per unit volume.

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.