B improve your posture and appearance
C.) ask that the people in the area separate hazardous waste from biodegradable waste
Explanation: Not doing so can cause harm to the air and environment
Independent variable...................
Infectious diseases, like cholera, typhoid fever [6] and other diseases gastroenteritis, diarrhea, vomiting, skin and kidney problem are spreading through polluted water [7]. Human health is affected by the direct damage of plants and animal nutrition.
