<prompt> Translate the following text to EnglishPili, uchafuzi wa mazingira unachangia matatizo mbalimbali ya afya na mazingira, kama vile smog, mvua ya asidi, nitrojeni na udhaifu wa kuona.  <response>: These pollutants contribute to a variety of health and environmental problems, such as smog, acid rain, nitrogen deposition and visibility impairment. 