Immediate moisture evaporation from soil sample is most widely measured using:

Correct option is B

· Alcohol rapid moisture meter burns alcohol to evaporate water instantly.
· Gives quick moisture estimate.
· Used in field conditions.
Why other options are wrong
· (a) No such method.
· (c) Oven drying takes hours, not immediate.
· (d) Microwave drying is fast but not the standard “immediate” method.