Please capitalize where necessary: double hoses in nylon (pa12) or polyurethane (pu).
A: Double hoses in Nylon (PA12) or Polyurethane (PU).

Q: smhi.se swedish meteorological and hydrological institute

A: smhi.se Swedish Meteorological and Hydrological Institute

Q: rope climbing is a sport in which competitors, usually men, attempt to climb up a suspended vertical rope using only their hands. rope climbing is practiced regularly at the world police and fire games, and is enjoying a resurgence in france, where competitions are held in shopping centres.
A: Rope climbing is a sport in which competitors, usually men, attempt to climb up a suspended vertical rope using only their hands. Rope climbing is practiced regularly at the World Police and Fire Games, and is enjoying a resurgence in France, where competitions are held in shopping centres.

Problem: as a consequence of the victory in the battle of Oland, the allied danish and dutch fleets had won control of the southern baltic. christian v utilised this favourable situation to disembark the danish troops.
Can you repeat this sentence, but capitalize it?
Answer: As a consequence of the victory in the Battle of Oland, the allied Danish and Dutch fleets had won control of the southern Baltic. Christian V utilised this favourable situation to disembark the Danish troops.

Text: most marine litter is generated by land-based activities.

Correct capitalization: Most marine litter is generated by land-based activities.

Problem: one of the favorite methods of covert activities is to 'hide' their operation in such an obvious way [or place] that no one would suspect it is covert
Can you repeat this sentence, but capitalize it?
Answer:
One of the favorite methods of covert activities is to 'hide' their operation in such an OBVIOUS way [or place] that no one would suspect it is covert