Please capitalize where necessary: the same possibility also exists for most of the other eu-15 countries.
A: The same possibility also exists for most of the other EU-15 countries.

Q: demand is rising with the temperatures and especially for larger groups, it is recommended, walking days and corporate events to plan in time.

A: Demand is rising with the temperatures and especially for larger groups, it is recommended, Walking days and corporate events to plan in time.

Q: the fuel saving technology recently launched with the new volvo fh has taken a further leap forwards. i-see can now save up to 5 percent fuel from the moment it starts driving.
A: The fuel saving technology recently launched with the new Volvo FH has taken a further leap forwards. I-See can now save up to 5 percent fuel from the moment it starts driving.

Problem: instantly trend and monitor intermittent problems with trendit™️ graphs.
Can you repeat this sentence, but capitalize it?
Answer: Instantly trend and monitor intermittent problems with TrendIt™️ graphs.

Text: the new echo fishfinder dv and dv echomap combination units have the same technical features as the previous echo and echomap series. garmin equips however-as the suffix"dv" nahelegt- with the technology of downvu. egal ob graustufen- or color display, who owns a unit in the new series, enjoys a downvu encoder a unprecedented precision and image quality.

Correct capitalization: The new echo Fishfinder dv and dv echoMAP Combination units have the same technical features as the previous echo and echoMAP series. Garmin equips however-as the suffix"dv" nahelegt- with the technology of DownVu. Egal ob Graustufen- or color display, who owns a unit in the new series, enjoys a DownVu encoder a unprecedented precision and image quality.

Text: when you add to those sources the deliberate rain of toxins via chemtrails, the toxic waste in landfills, and unsafely stored radioactive materials, it is overwhelmingly clear that nothing in your world has escaped humankind's negligence, at the very least, and criminal contamination at worst.

Correct capitalization:
When you add to those sources the deliberate rain of toxins via chemtrails, the toxic waste in landfills, and unsafely stored radioactive materials, it is overwhelmingly clear that nothing in your world has escaped humankind's negligence, at the very least, and criminal contamination at worst.