Forces of nature What are natural resources? Natural resources are derived from the environment and are essential for our survival. These include coal, crude oil, and natural gas, which give us energy. There are many resources in the Earth's crust; drinking water and cultivable land are also examples of natural resources. Ores, precious stones, salt, lime, and quartz sand are some of the natural resources that are used to make various products useful for our day-to-day existence. ? How is salt obtained?
Answers
Explanation:
Forces of nature What are natural resources?
Fundamental forces of nature: The weak force
Physicists describe this interaction through the exchange of force-carrying particles called bosons. Specific kinds of bosons are responsible for three of the fundamental forces of nature — the weak force, electromagnetic force and strong force.
How is salt obtained?
Sea water has large quantities of salts dissolved in them. ... The sea water evaporates due to the sun's heat and solid salt is left behind. The left salt is collected and refined to get purified salt. Hence, salt is obtained from sea water by evaporation.
Answer:
Commercial salt is manufactured from rock salt, as well as from seawater and other natural and artificial brines. Most of the artificial brines are obtained by pumping water into underground salt beds. A considerable amount of brine itself is used directly in industrial countries.
Explanation:
At one time almost all the salt used in commerce was produced from the evaporation of seawater, and sea salt still is a staple commodity in many maritime countries, especially where the climate is dry and the summer is long. Commercial salt is manufactured from rock salt, as well as from seawater and other natural and artificial brines. Most of the artificial brines are obtained by pumping water into underground salt beds. A considerable amount of brine itself is used directly in industrial countries. The beds of rock salt are mined or quarried by the usual excavation methods, depending on the depths and thicknesses of the deposits and local conditions. The mined rock salt sometimes is dissolved and the salt manufactured by treatment of the brine, as described below. The method affords opportunities for purification of the salt. When the rock salt is of a high degree of purity, as in Poland and the United States, the salt may be ground, screened, and marketed without further processing. The salt is mined in large lumps that are first crushed, then more finely ground and screened by size into various grades; the salt is then bulk-loaded into trucks, hoppers, or barges or loaded into bags for further handling. Bulk handling has been greatly facilitated by the use of anticaking agents which allow the salt to be stored uncovered and outdoors without becoming a hard mass again.