The mean temperature in the layer between 750 and 500 hpa decreases eastward by 3° c per 100 km. if the 750-hpa geostrophic wind is from the southeast at 20 m s-1, what is the geostrophic wind speed and direction at 500 hpa? let f 10-4 s-1

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide