Necessary example sentences

In many practical cases it is necessary to increase or decrease the current in an electric circuit.Commerce includes all those activities which are necessary for facilitating the exchange of goods and services.This is called Sinking Fund method according to while the company makes necessary arrangements is sets aside a part of divisible profit every year and invest the same outside the business in marketable securities.First, it generates a degree of trust and coordination that is necessary for different kind of people to live together; Second, it specifies how the government will be constituted, who will have power to take which decisions; Third, it lays down limits on the powers of the government and tells us what the rights of the citizens are; and Fourth, it expresses the aspirations of the people about creating a good society.It is necessary for you to expect the students to respond actively in the classroom and on a topic such as the above there would be wide variation in opinion and possibility of debate.That is, it was postulated that a 'vital force' was necessary for their synthesis.But why is water so necessary? And do all organisms require water? All cellular processes take place in a water medium.After land, labour is the next necessary factor for production.Why is this necessary? Why we cannot make do with the current levels of production? India is a very populous country.The resources available on the Earth and the energy from the Sun are necessary to meet the basic requirements of all life-forms on the Earth.Tax planning has become necessary these days because there are a number of tax laws in the country and they influence almost every aspect of the functioning of modern business.Many of the reformers felt that education for girls was necessary in order to improve the condition of women.Written language is not necessary for answering the items.Secondly, while formal sector loans need to expand, it is also necessary that everyone receives these loans.Laws relating to Weights and Measures and protection of brands are necessary to protect the interest of the consumers as well as the traders.