Identify how wind speed and wind direction are measured

Measuring wind speed with a three-cup, handheld anemometer. The square plate at the back is a vane that aligns itself with the wind so you can measure wind direction too. This model, used by the US Navy, is an Ames RVM 96 B capable of measuring wind speeds up to about 50 m/s (180 km/h or 112 mph).

Wind speed and wind direction can be measured with a variety of tools. The most common, included with complete home weather stations, is the anemometer, which typically consists of a rotating vane to measure direction and a shaft with cups attached that spins with the wind to measure its speed.

Idont care ok knowone does

Ithink option a is correct because you cannot donate a different blood group than yours because it won't match.option a says betsy can donate to mark. they have the same blood group so donation can happen.