Explanation

• Humidity in the air was measured by a Hygrometer.
• ****
  
• A hygrometer is an instrument used to measure relative humidity.
• Humidity is the measure of the amount of moisture in the air.
• A psychrometer is an example of a hygrometer.
• hygrometer.
  
• 
  
• ***
• The humidity in the air tells us about the ratio of Water vapors in the air