The main use of salt in the diet is to produce in small amounts the hydrochloric acid required for the digestion of food.

The plants which flower only once in their lifetime are called Monocarpic Plants.

Electronegativity measures an element's ability to form chemical bonds. Helium is the most electronegative element followed by Fluorine.

Here in the given options, Oxygen is the most electronegative element. Fluorine is followed by Oxygen, Chlorine and Nitrogen is the most electronegative elements list.

RAM stands for Random Access Memory.

Handwritten wills are also known as Holographic wills since they are made by the persons called testators without notary or any witness.

Cryogenic Engines find applications in Rocket technology. A cryogenic rocket engine is a rocket engine that uses a cryogenic fuel or oxidizer, that is, its fuel or oxidizer are gases liquefied and stored at very low temperatures. Notably, these engines were one of the main factors of NASA's success in reaching the Moon by the Saturn V rocket.

The Suez Canal is considered to be an important link b/w the developed countries and the developing countries. It is a sea-level waterway in Egypt, connecting the Mediterranean Sea to the Red Sea Constructed by the Suez Canal Company between 1859 and 1869.

The first attempt in printing was made in England by William Caxton.

William Caxton was an English merchant, diplomat, and writer. He is thought to be the first person to introduce a printing press into England, in 1476, and as a printer was the first English retailer of printed books.