What is the difference between tropical and temperate climates is mainly the result of?

Tropical regions lie between the Tropic of Cancer in the Northern Hemisphere and between the Tropic of Capricorn in the Southern hemisphere. Whereas, Temperate regions lie between Middle latitudes and the polar regions.

The tropical atmosphere is a non- arid climate, which indicates that temperature in all twelve months remains at least 18 degrees Celsius. Only two seasons (Wet and Dry) can be seen in the tropical climate zones. The temperature of the polar regions are relatively moderate and characterized by great changes in temperature between Summer and Winter. Therefore, most of the places with a temperate climate have four seasons as summer, winter, autumn and spring.  

1. darius the great     persia  

2. piankhi       nubia

3. ezana       aksum

4.     nebuchadnezzar     babylonia

5. shalmaneser iii     assyria

the industrial development of cities in the ruhr area in the nineteenth century is described. the research was based on english and german language sources. several factors that shaped growth and paths of the cities were categorized and analyzed. they are locations, resources, traditions, entrepreneurs, and technological developments. locations and resources were the most important among them; other factors may be regarded as consequences from locations and resources. among the cities, bochum, essen, gelsenkirchen, and dortmund had the richest resources and most favorable locations in the transportation network and grew to be the largest cities in the ruhr area near the end of the nineteenth century. riverside location was also a favorable factor for the development, as shown in the development of duisburg on the confluence of rhine and ruhr. resource distribution can explain the rise of textile industry, metallurgical industry, and coal and iron industries, and the northward progression of the mining industry. tradition was an important factor for cities such as krefeld, barmen, elberfeld, solingen, and remscheid, which experienced development based on their traditions through the nineteenth century. various entrepreneurs exerted influences within and beyond the local level over the ruhr area. technological development stimulated the northward progression of the mining industry and the deep connection between the coal and the iron industries.