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Industry is the word used to describe the goods or services that are available within an economy. Industry is often broken into three groups: primary (extractive), secondary (manufacturing) and tertiary (service). Primary industries are those which extract a substance from the earth such as mining, farming or logging. Secondary industries are those which process the products from primary industry (factories and refineries are a good example of secondary industries). Tertiary industries are those that provide services such as teachers and accountants. Sometimes the breakdown of industry also includes Quaternary industry such as the research of science and technology and the Quinary Sector which includes top level officials in fields such as the sciences, government, universities etc. So what is the largest industry in the world? Read this article to find out.
The epiglottis is a small cartilage flap at the opening of the larynx. It is attached the root of the tongue and covers the glottis during the act of swallowing. It is a mucous membrane and also has the ability to taste because it has taste buds. The epiglottis is made of an elastic cartilage that has two surfaces, a lingual and a laryngeal. The lingual surface is positioned to face the oral cavity, whilst the laryngeal faces the larynx.
The esophagus is the muscular tube which connects your throat (pharynx) with your stomach. It is through this tube that any food or drink your ingest passes. On average the esophagus is 25cm but may vary from person to person. The sphincter of the esophagus only opens when swallowing or regurgitating food. This is so that foreign objects or air do not make their way into the stomach.
The lungs are one of the largest vital organs in the human body. They are comprised of two oval shaped sacks that are located on either side of the heart with an adjoining air tube. They dominate the chest cavity and are protected by the ribs. The left lung is slightly smaller than the right allowing room for the heart within the chest cavity. The lungs have a very important function in the body and without them it would be impossible to live. So what is the function of the lungs? Read this article to find out.
North America is the third largest continent by area and fourth largest by population. There are 23 countries found on the continent, but the majority of the continent is made up of Canada and the United States. The continent is bordered by the Arctic Ocean, Atlantic Ocean and the Pacific Ocean and is found to the north-west of South America. North America has many mountain ranges where many rivers begin their journey to lower ground. The longest river on the continent begins in the famous Rocky Mountains.
Beer is the most widely consumed alcoholic beverage around the world. It is thought to be the oldest alcoholic beverage and is the third most widely consumed liquid behind water and tea. Beer is now brewed globally both corporately and privately. It is an integral part of many cultures and has many associated traditions and festivals.
The moon is the Earth’s only natural satellite and is thought to be as old as the Earth itself. It is the fifth largest satellite in the solar system and dominates the night sky. For hundreds of years people have observed the moon in the night sky and wondered what it was made of. Many guesses have been ventured including: cheese, chalk, pure light, but none of these are correct. So what is the moon made of? Read this article to find out.
Europe is a continent located to the west of Asia and north of Africa. Europe is the 2nd smallest continent in terms of area, but the 3rd largest in terms of population. Despite being relatively small, Europe has a number of impressive mountain ranges, including the famous Pyrenees and Alps. These ranges have some very high mountains and they are popular with both tourists and mountaineers. Let’s find out which mountain has the title of the highest in Europe.
Greece is a country located in Southern Europe that shares a border with Albania, Macedonia, Bulgaria and Turkey. The country also features approximately 1,400 islands (about 230 are inhabited), which means that this relatively small country in terms of area has one of the largest coastlines in the world. These islands have long been popular with tourists because of their beauty and warm climate, but they have also long been inhabited by local people. Let’s find out which of these 1,400 islands is the largest in area and population.
Asia is the largest continent in terms of both area and population. It is located to the east and south-east of Europe, east and north-east of Afirca, and north-west of Australia. Asia is home to some of the largest mountains in the world, including the Himalayas, and many long rivers begin in these mountain ranges fed from the numerous glaciers. Let’s find out which river is the longest on the Asian continent.