The computer brain is a microprocessor called the central processing unit (CPU). It's the CPU's job to perform the calculations necessary to make the computer work.

Joseph Priestley discovered a method of infusing water with carbon dioxide when he suspended a bowl of water above a beer vat at a local brewery which resulted in Soda water.

Skin has three layers: The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone. The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands. The deeper subcutaneous tissue (hypodermis) is made of fat and connective tissue.

Leguminous plants have root nodules which provide shelter to a bacteria called Rhizobium.It is very important bacteria for the plant as it converts atmospheric nitrogen into usable form called nitrates so that plants will be able to make proteins for their growth.

An earthworm is a tube-shaped, segmented worm found in the phylum Annelida. The annelids include earthworms, polychaete worms, and leeches. All members of the group are to some extent segmented, in other words, made up of segments that are formed by subdivisions that partially transect the body cavity.

Protons, neutrons, and electrons are the three main subatomic particles found in an atom. Protons have a positive (+) charge. Neutrons have no electrical charge. Electrons have (-) charge. Both protons and neutrons have approximately equal mass.

Evaporation is a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase that is not saturated with the evaporating substance. The other type of vaporization is boiling, which is characterized by bubbles of saturated vapor forming in the liquid phase.

The Jantar Mantar monument in Jaipur, Rajasthan is a collection of nineteen architectural astronomical instruments, built by the Rajput king Sawai Jai Singh II. It is a UNESCO World Heritage site.

The Salzburg Festival is a prominent festival of music and drama of Austria.

The birth rate is the total number of live births per 1,000 of a population in a year.

The Geysers is the world's largest geothermal field, containing a complex of 22 geothermal power plants, drawing steam from more than 350 wells, located in the Mayacamas Mountains north of San Francisco, California.

Bauxite is an aluminium ore which is the world's main source of aluminium.

The real name of Dilip Kumar was Muhammed Yusuf Khan.

The Gobi Desert is a large desert region in Asia. It covers parts of northern and northwestern China, and of southern Mongolia.

Ordered from largest in size to smallest, the seven continents are: Asia, Africa, North America, South America, Antarctica, Europe, and Australia.

Once Shah Jahan fell seriously ill, which set off a war of succession among his four sons, in which his third son Aurangzeb, emerged victorious. Shah Jahan recovered from his illness, but Aurangzeb put his father under house arrest in Agra Fort until his death.

The Battle of Wandiwash was a decisive battle in India fought between the French and the British. Having made substantial gains in Bengal and Hyderabad, the British, after collecting huge amount of revenue, were fully equipped to face the French in Wandiwash, whom they defeated.

The Pulitzer Prize is an award for achievements in newspaper, magazine and online journalism, literature, and musical composition in the United States.

The ohm is the SI unit of electrical resistance.