Please capitalize where necessary: the term comes from the greek letter theta (), which the greeks used to represent thought or perhaps spirit. something which is theta is characterized by reason, serenity, stability, happiness, cheerful emotion, persistence and the other factors which man ordinarily considers desirable.
A: The term comes from the Greek letter theta (), which the Greeks used to represent thought or perhaps spirit. Something which is theta is characterized by reason, serenity, stability, happiness, cheerful emotion, persistence and the other factors which Man ordinarily considers desirable.

Please capitalize where necessary: he has trained people from over 30 different countries and has worked with organizations from a variety of industries.
A: He has trained people from over 30 different countries and has worked with organizations from a variety of industries.

Please capitalize where necessary: texturizza, gives body and shape, leaving the hair soft and natural to the touch.
A: Texturizza, gives body and shape, leaving the hair soft and natural to the touch.

Please capitalize where necessary: skin impurities are also caused by inflammatory processes in the oil glands, involving bacteria, which is why oily and impure skin responds highly positive to bisobolol.
A:
Skin impurities are also caused by inflammatory processes in the oil glands, involving bacteria, which is why oily and impure skin responds highly positive to bisobolol.