Answer:
Anemometers measure wind speed and wind vanes measure wind direction. A typical wind vane has a pointer in front and fins in back. When the wind is blowing, the wind vane points into the wind.Barometers, manometers and anemometers are all scientific instruments. Scientists use barometers and manometers to measure atmospheric pressure, while anemometers measure wind speed.
Explanation:
Protons can't change in stable elements so its means that is Barium
53 becaus it dosent know how to do it
FIRST ONE IS SPRING ****
Second one is Buoyancy.
