Answer:
1) A weather front is a boundary separating air masses of different characteristics such as air density, wind, and humidity. Disturbed weather often arises from these differences
2)
Anemometer( both wind speed amd direction are measured by it)
hope it helps:)
Answer:
The OPPONENT PROCESS theory of color vision
Muhammad left Mecca, in 622 CE, after he was warned about a plot to assassinate him. The migration of the Prophet and his followers from Mecca to Medina is known as Hijra or Hegira.