In each of the questions, four alternatives are given for the Idiom/Phrase. Choose the alternative which best expresses the meaning of the Idiom/Phrase and click the button corresponding to it. An axe to grind
Correct Answer: SODAR (SOnic Detection And Ranging)
Explanation:
SODAR (SOnic Detection And Ranging), also written as sodar, is a meteorological instrument also known as a wind profiler which measures the scattering of sound waves by atmospheric turbulence.
9. Which of the following types of soil are mostly confined to river basins and coastal plains of India?