ಭಾರತದ ಹೆಚ್ಚಿನ ಹಳ್ಳಿಗಳು ಇತರ ರೀತಿಯ ಮಾಲಿನ್ಯಕ್ಕಿಂತ _________ ಗೆ ಹೆಚ್ಚು ಒಳಗಾಗುತ್ತವೆ.

Villages depend heavily on ponds, rivers and wells, which are often contaminated by sewage, open defecation, animal waste and farm chemicals. So water pollution, and the diseases it spreads, is the most widespread problem in rural India.