Question

Which is the scientific method that measures soil moisture by sending an electromagnetic pulse along a probe inserted into the soil? 

A Electrical Resistance Blocks Correct Answer Incorrect Answer
B Volumetric method Correct Answer Incorrect Answer
C Tensiometers Correct Answer Incorrect Answer
D Time Domain Reflectometry (TDR) Correct Answer Incorrect Answer

Solution

TDR uses electromagnetic pulses sent along a probe inserted into the soil and measures the time taken for the pulse to travel back to determine soil moisture content.

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