Please capitalize where necessary: and whether such activity is heresy?
A: And whether such activity is heresy?

Q: what are the risk factors for heart disease

A: What are the risk factors for heart disease

Q: acts in synergy with the basic dye treating sens.us cream color (m3k, velvet and mc2) to better penetrate into the hair, for a superior cosmetic effect.
A: acts in synergy with the basic dye treating SENS.US CREAM COLOR (M3K, VELVET and MC2) to better penetrate into the hair, for a superior cosmetic effect.

Problem: in the vineyard alain has seen how our meunier-grapes are busy changing colour.
Can you repeat this sentence, but capitalize it?
Answer: In the vineyard Alain has seen how our Meunier-grapes are busy changing colour.

Text: martinus: the eternal world picture, vol. 1, sect. 8.4.

Correct capitalization: Martinus: The Eternal World Picture, vol. 1, sect. 8.4.

Text: it supports different output dvd quality, so you even can burn 7 hours movies to one dvd disc.

Correct capitalization:
It supports different output DVD quality, so you even can burn 7 hours movies to one DVD disc.