The document discusses temperature and zonation/stratification in oceans. It defines temperature as a measure of an object's ability to transfer heat energy, which can be quantified using scales like Kelvin, Fahrenheit and Celsius. Temperature also refers to the warmth or coldness of a body relative to a standard value. Zonation in oceans creates horizontal areas that retain habitat quality and connectivity for multiple species to support their long-term persistence, while stratification divides oceans into vertical layers.