I think it brings to the warm places cold air and to cold places it brings warm air
Answer:
Pathogenic bacteria are bacteria that can cause disease. Although most bacteria are harmless or often beneficial, some are pathogenic, with the number of species estimated as fewer than a hundred that are seen to cause infectious diseases in humans
Explanation:
The answer is D:a Water <em>.</em><em>.</em><em>.</em><em>.</em>