Lake malawi, in the african rift valley, is home to more than a hundred species of cichlid fishes, each with slightly different diets and habits. all these species probably evolved from a common ancestor, making them an example of

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a