Question

You went to see the Indian international trade fair held at pragati maidan, New Delhi. write a diary entry page to express ypur experience of visiting the fair and also mention with whom ypu went and what u saw there​

Answer 1

A barometer is a scientific instrument used to measure atmospheric pressure, also called barometric pressure. The atmosphere is the layers of air wrapped around the Earth. That air has a weight and presses against everything it touches as gravity pulls it to Earth. Barometers measure this pressure.

Answer 2

In 1846 he named this substance protoplasm, a word that had been invented by the Czech physiologist Jan Evangelista Purkinje with reference to the embryonic material found in eggs. Von Mohl was also first to propose that new cells are formed by cell division, a process he observed in the alga Conferva glomerata.