Which of the following statements is/are NOT true?
- Urban heat island effect in a city can be reduced by increasing trees and vegetation cover in the city.
- Urban heat island intensity is affected by PM 2.5 concentrations in a city.
- Urban heat island intensity increases due to installation of reflective roofs in a city.
- In comparison with the non-urban areas, urban heat island effect raises night-time temperatures more than daytime temperatures in cities.