colony of rats on the surface and almost certainly numerous complaints to the control agency. In short, the uncontrolled populations of rats in sewers constitute a reservoir which extends into all parts of a city and is capable of establishing new infestations on the surface. The structural damage caused by sewer rats can be considerable. They are
The Saffir-Simpson scale measures the intensity of a hurricane. Wind speed is measured on a scale of 1-5 to give an estimate of potential property damage and flooding along the coast. The Categories are as follows: Category One Hurricane: Winds 74-95 mph.
An anemometer is a device used to measure wind speed. It is used by  atmospheric scientists or those gathering weather data.   Anemometer-An anemometer is a device for me â¦ asuring wind  speed, and is one instrument used in a weather station.The term is  derived from the Greek word, anemos, meaning wind.nemometers can be divided into two classes: those that measure the wind's speed, and those that measure the wind's pressu â¦ re; but as there is a close connection between the pressure and the speed, an anemometer designed for one will give information about both.