:Category:Astronomical objects' is the main category related to astronomical objects, although most articles should be listed in subcategories.

There are two main categories related to pollution, point source pollution, and nonpoint source pollution.

In this study, they found many cultural and meaningful categories related by inclusion that are not conventionally labeled.

In addition to the advanced search and visual trend analysis tools the system includes a directory of research projects classified into categories related to aging research.

Amplitude fluctuations can be placed in three overlapping perceptual categories related to the rate of fluctuation.

Cheers did not win any Golden Globes for categories related to comedy television of 1983 at the 1984 ceremony.

The best practices are organized into five categories related to the role of the owner, teamwork and collaboration, advance planning, process, and benchmarking.

Polish public roads are grouped into categories related to administrative division.

The main page of this project provides an outline of categories and topics related to electronic government, which are being considered for inclusion in future legislation.

In Cuba, jineterismo is a category of illegal or semi-legal economic activities related to tourism in Cuba.