Aactive-satellite, one that sends out electromagnetic waves, can be the energy down toward the ocean surface and determine how large the waves on the ocean are. how much energy comes back to the satellite and how fast it returns gives information. what is that?

This is called backscatter which refers to the ability of big waves to reflect the energy in order to give back the signal .

Explanation:

What is meant by backscatter?

Backscatter is the process where by the waves or signal is reflected back to the original direction and get scattered in all directions.

Backscatter allows us to receive signal and be able to view all the channels that are connected through the satellite.

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b.

explanation:

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