Add punctuation: Nicolas Poynter has a BSc in chemistry from the University of Oklahoma USA and worked for 20 years as an analytical chemist in environmental laboratories and as a field chemist searching for underground petroleum leaks on crosscountry pipelines In 2009 he decided to focus on training and education because he found that he enjoyed this part of his job more than any other Nicolas now teaches physical science the first block of which is physics the second being chemistry at Choctaw High School in Choctaw Oklahoma USA
A: Nicolas Poynter has a BSc in chemistry from the University of Oklahoma, USA, and worked for 20 years as an analytical chemist in environmental laboratories and as a field chemist, searching for underground petroleum leaks on cross-country pipelines. In 2009, he decided to focus on training and education, because he found that he enjoyed this part of his job more than any other. Nicolas now teaches physical science (the first block of which is physics, the second being chemistry) at Choctaw High School in Choctaw, Oklahoma, USA.

Add punctuation: Consequently it should not be placed directly on a wall if bass performance is intended
A: Consequently it should not be placed directly on a wall if bass performance is intended.

Add punctuation: The first European Equal Pay Day took place in March 2011with the aim of raising awareness of the pay gap between men and women
A:
The first European Equal Pay Day took place in March 2011,with the aim of raising awareness of the pay gap between men and women.