Best Answer: The initial size of the star is what decides. A star is huge, I mean really big, and all that gravity wants to pull itself together (everything attracts). So, the star wants to collapse. But, it creates nuclear fusion, and that is the force that pushes the star out.
2015-11-20T10:18:22-05:00. agricultural. The largest use of the world's water is used for irrigation or agriculture. This is because the high demand of food thus agricultural products are demanded to supply at a rapid amount in just a short time. The population growth influences mainly the use of resources and one is water. Fresh water only amounts little to the drastic needs of society today and much is used for agriculture as studies suggest.
Table 1 presents the per capita water use in different continents. It may be observed that the per capita water use is only 245 m3 per year in Africa followed by 478 m3 in South America, 519 m3 in Asia, 713 m3 in former USSR, 1280 m3 in Europe and 1861 m3 in North and Central America.The available water is generally used for agriculture, industrial production and domestic purposes.s can be seen in Table 4, the per capita water availability in 1951 was 5177 m3 per year when the total population was only 361 million. In 2001, as the population increased to 1027 million, the per capita water availability reduced drastically to 1820 m3 per year.