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.
Thatâs hard to imagine if you just think about drinking water, flushing the toilet and taking a shower. But most of it comes from 'hidden' water usage; the water needed to grow the food we eat and make the products we use. The total global requirement for water is over four trillion litres a year.