Determination of fluid category 2. Water in fluid category 1 whose aesthetic quality is impaired owing to: 1  a change in its temperature; or. 2  the presence of substances or organisms causing a change in its taste, odour or appearance, including water in a hot water distribution system.
Credibility is defined as the quality or power of inspiring belief. Credible sources, therefore, must be reliable sources that provide information that one can believe to be true. It is important to use credible sources in an academic research paper because your audience will expect you to have backed up your assertions with credible evidence.
1 Know the facts: To gain and maintain credibility, it is critical that you have the all of the facts on both sides of any issue. 2  Having this information at your finger-tips will help you in conversations with government officials, the media, other advocates, and the general public.