Answer: A.
Explanation:Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a ... Between each pulse, the radar station serves as a receiver as it listens for ... If pulses are emitted too frequently, the returns from one pulse will be ... Over the area covered by radar echoes, a program assigns a precipitation type
Answer:
Air and noise pollution can occur both indoors and outdoors. They can have natural sources or be released from anthropogenic sources. Scientists have found different ways to reduce the amount of sulfur dioxide released from coal-burning power plants. ... another option is to wash the coal to remove some of the sulfur.
Explanation:
Sulfur Dioxide
