please note, however, that falling trends often last for a long time, and disappointment is often followed by more disappointment.

How would the previous sentence be correctly capitalized?
Answer: Please note, however, that falling trends often last for a long time, and disappointment is often followed by more disappointment.
in the case that your a file doesn't open, it is highly likely that you do not have the correct software application installed on your pc to view or edit a file extensions.

How would the previous sentence be correctly capitalized?
Answer: In the case that your A file doesn't open, it is highly likely that you do not have the correct software application installed on your PC to view or edit A file extensions.
in the natural aging process, uv rays, mental stress and carbon monoxide gradually damage the skin. therefore, aging skin care needs more attention.

How would the previous sentence be correctly capitalized?
Answer: In the natural aging process, UV rays, mental stress and carbon monoxide gradually damage the skin. Therefore, aging skin care needs more attention.
distribution of seats in parliament as the result of the 2002 parliamentary elections

How would the previous sentence be correctly capitalized?
Answer: Distribution of seats in Parliament as the result of the 2002 parliamentary elections