The Doppler radar used in weather forecasting measures the direction and speed, or velocity, of objects such as drops of precipitation. This is called the Doppler Effect and is used to determine whether movement in the atmosphere is horizontally toward or away from the radar, which aides in weather forecasting.
        
                    
             
        
        
        
Answer:
B.) metamorphic
Explanation:
Metamorphic rocks come from other kinds of rocks, like igneous and sedimentary. They are created by intense heat and high pressure.