Definition: Sibilance is a sound characterized by pronouncing words with the letter 's'. In audio reproduction the letter 's' should sound clear and distinct, not smeared or distorted as in 'sh'.
High air pollution levels can cause immediate health problems including: Aggravated cardiovascular and respiratory illness; Added stress to heart and lungs, which must work harder to supply the body with oxygen; Damaged cells in the respiratory system
1) A clean environment is essential for healthy living. The more you donât care about our environment, the more it will become polluted with contaminants and toxins that have a harmful impact on our health. Air pollution can cause respiratory diseases and cancer, among other problems and diseases.