Shadow Power 24

The molten mix of different substances that pour out from the volcanoes is called magma.

The monomer of protein is amino acid.

The solid substance obtained from mixing any molten metal or nonmetal with another molten metal and cooling the mixture is called alloy.

Nuclear fusion is the process by which multiple nuclei join together to form a heavier nucleus and it is accompanied by the release or absorption of energy depending on the masses of the nuclei involved.

In mathematical terms, the value of pH may be any number from negative to positive, in reality, the value is measured on a scale of 0 to 14.

There are some isotopes the nucleus of which spontaneously synthesize themselves and emit alpha, beta, gamma rays. They are called radioactive isotopes. 

The process of heating a condensed ore at temperature below the melting point in absence of air is called calcination.

During metal extraction from ores, some other materials besides the ore are mixed with the ores which are known as metal impurities.