History Essay Example | Topics and Well Written Essays - 500 words - 47

History - Essay Example In over four hundred years ago, some of the settlers and Europeans coexisted peacefully, while others fought each other. Even today, many people are still migrating to America to seek a better life. Although slave trade is outdated, there is a high rise of illegal immigrants. Immigration is relevant in today’s world; it has a great impact on the economy. People who run factories, restaurants and farms, find immigrants helpful in their businesses. Immigrants are a cheap source of labor. Therefore, this means low operating costs, high profits, and low prices for commodities produced. For some Americans, immigrants are a hurt to the economy, for instance, high school drop outs who are seeking jobs say immigrants are interfering with the job entry level to take lower wages. Other groups in the society believe immigrants provide a great source of labor, which result to high yield. Immigrants spending on necessities like food, shelter and clothing leads to an increase in domestic gross product. Immigration has resulted to an increase in population, with an estimate of 82% increase from the immigrants. The immigrants come with a positive attitude to excel; they are known to be creative, industrious and adventurous. Many of the immigrants start their businesses that contribute to revenue. In social circles, racism is experienced towards the immigrants, especially the minority groups. For instance, racism exists between the Africa Americans and the non-white Latino immigrants. Attacks and fights have also been experienced between African immigrants and Africa Americans. Because of migration, religion has great diverse in America. For instance, increase in Islam, Hinduism, and Buddhism. Politically, most of the immigrants associate with groups that address immigration issues. The issue of shared amenities is believed to strain a state with time. For instance, if water sources are not increased, then people will

Large-Scale Biomass Combustion Essay Example | Topics and Well Written Essays - 2000 words - 1

Large-Scale Biomass Combustion - Essay Example It possesses a significant need in everyday life. For instance, energy is being used for various activities that include the execution of cars for moving one place to another and televisions for the purpose of entertainment among others. Moreover, energy is also used for producing electricity and heat for different purposes. It has been apparently observed that a large percentage of energy is obtained from the combustion of biomass (Need, 2012). Â  In this paper, a critical discussion about the use of sustainable energy will be taken into concern. Moreover, the determination of large-scale business combustion as one of the sustainable options for energy generation will also be discussed in this paper. Â  Biomass Combustion is principally described as the method of burning through which 90% of the world’s energy is released to supply heat and energy services like material processing that includes food preparation, electricity, and transportation. It has been viewed as the process through which fuels are burnt with the help of oxygen (Overend, 2004). Â  Biomass combustion is considered as the oldest type of combustion that largely exploited by human beings. It is also regarded as one of the most complicated forms of the combustion system. This process of combustion entails the use of solid fuels in a multi-phase reaction system interacting with different mass fluxes. The prime understanding of the solid fuel combustion system reveals with reference to the fact that only fuel can burn and release heat. It has also been viewed that solids and liquids do not burn by themselves but consume heat in the process of drying which is required to be chemically transformed into fuel gas. There are several different materials that can be considered as biomass. These materials include solid wood, fats, and proteins (Overend, 2004).