An irregularly occurring and complex series of climatic changes affecting the equatorial pacific region and beyond every few years, characterized by the appearance of unusually warm, nutrient-poor water off northern Peru and Ecuador, typically in late December
B. Evaporation, When water is heated to its boiling point, it becomes water vapor and enters the atmosphere.
What determines the chemical properties is : color, hardness, luster, crystal forms, density, and cleavage.
Answer E: all of the above
