C. Soft or mechanical soft
The stratum corneum is the most superficial layer of the epidermis...it's the one that's exposed to the environment. That's why it's waterproof!
Interphase, lasting 18 of the 20 hours cycle
Groundwater is defined as water that is found beneath the surface of the earth in conditions of 100 percent saturation (if is less than 100 percent saturation,then the water is considered soil moisture).Ninety-eight percent of earth’s available fresh water is groundwater
