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
An explanation of how the natural world works.
The electrical property of the membrane changes. There is a small undershoot in the membrane potential.
A.photosynthesis because algae is a type of plant.