Answer:
City life is extremely unhealthy due to air pollution, water pollution, and noise pollution. The people are not getting fresh air to breathe or the clear sky to enjoy the sunshine. Also, food in the cities is dirty, unhealthy and adulterated. The villages are very much away from such drawbacks
It means the scientific study of sight and the behavior of light, or the properties of transmission and deflection of other forms of radiation
Answer: It is a fragment.
Explanation: It does not complete a thought.
