1. The proton was discovered by Rutherford. The name proton is derived from the Greek word protos meaning 'first'. The proton is a positively charged particle located in the nucleus of an atom, which was discovered by Ernest Rutherford in 1920. Rutherford proved in 1917 that the nucleus of the hydrogen atom (ie a proton) is present in the nuclei of all other atoms.

2. The nucleus of the atom was discovered by Ernest Rutherford in his famous gold foil experiment in the year 1911. The value of the particle is 1.6*10-19 C. To make an atom neutral, it has the same number of protons and electrons. He used the same concept to discover the proton.

 1. Among these, olive cultivation is studied in olivoculture.

2. Olives originated in the region of Southern Europe near the Mediterranean Sea. Currently, the largest producing countries are in the same region, with Spain, Italy, Morocco, Turkey and Greece being the largest producers.

1. It is secreted in the adrenal gland into the medulla as well as in some neurons of the central nervous system.

2. It is known as an emergency hormone because it initiates an instant response that causes the person to think about the stress and react quickly.

The means of measuring the humidity of the atmosphere are called hygrometers.

The National Chemical Laboratory (NCL) is an ~ Indian Government laboratory based in Pune, popularly known as NCL, a constituent member of the Council of Scientific and Industrial Research (CSIR) India, it was established in 1950