THE omicron is a variant of SARS CoV-2 virus which is the virus that causes COVID-19. The omicron variant has a large number of mutations in the spike protein of the virus, which is part of the virus that allows it to enter human cells.
HONESTLY speaking, I have scraped a living from part-time tutoring for over a decade. I have also taught almost all school subjects to students of basic education as a part-time teacher.