individuals can simply go to the site, fill in the order form and wait for it to show up in their proper location.

How would the previous sentence be correctly capitalized?
Answer: Individuals can simply go to the site, fill in the order form and wait for it to show up in their proper location.
despite these achievements, however, poor air quality remains the number one environmental cause of premature deaths in the european union. the eu will be proposing a modified air quality package to ensure the best approach that will achieve results in this area.

How would the previous sentence be correctly capitalized?
Answer: Despite these achievements, however, poor air quality remains the number one environmental cause of premature deaths in the European Union. The EU will be proposing a modified Air Quality Package to ensure the best approach that will achieve results in this area.
the apache-navajo language and the other athabascan languages belong to an entirely different language family from the amerindian languages.

How would the previous sentence be correctly capitalized?
Answer: The Apache-Navajo language and the other Athabascan languages belong to an entirely different language family from the Amerindian languages.
the eec - association of south-east asian nations (asean) cooperation agreement comes into force.

How would the previous sentence be correctly capitalized?
Answer: The EEC - Association of south-east Asian Nations (ASEAN) Cooperation Agreement comes into force.