Question

question 27 points 1 sonar is a type of __________. - active sensor passive sensor robot soil kit

Explanation:

Sonar emits sound waves and then listens for the echoes to detect objects. Active sensors emit energy and measure the reflected energy. Sonar fits this description. Passive sensors only detect existing energy without emitting any. Robots and soil kits are unrelated to sonar's sensor - nature.

Answer:

A. active sensor