Which of these is not an environmental effect of destroying wetlands?

question 14 options:

loss of habitat

flooding

smog

unfiltered water

smog

A wetland is an ecosystem that is occupied by water, either permanently or seasonally. The wetland is occupied with water from rain, agricultural irrigation, water from the streams of water sources like river, lakes and ponds. Smog is a kind of air pollution, that develops from the mixture of the smoke and fog present in the air. A smog is formed by the burning of the coal, mixture of the smoke and sulfur dioxide.  

A wetland has no influence on the formation of the smog, but if a wetland gets wiped out due to drying or because of any other reason it may result in the loss of habitat of the organisms living in the wetland, flooding can occur if the water in the wetland rises, the water from different sources accumulated due to surface runoff can contain unfiltered water.  

you know that this symptom is misleading and quite often is related to: heart attack

a heart attack is a condition that occurs when the blood flow that transports oxygen to the heart muscle is damaged or cut off completely. the coronary arteries that supply the heart muscle with blood flow can be blocked by the accumulation of plaque. also, when the plaque within the heart artery breaks, it creates blood clot that can also hinder the blood flow. men that are over 45years of age and women that are over 55years of age are at risk of having a heart attack. the symptoms of a heart attack include chest discomfort, chest pain, coughing, and shortness of breath.