How will you determine composition of soil ?

What is the composition of soil?

How will you determine the polarity of the ends of a solenoid ?

The composition of vapour over a binary ideal solution is determined by the composition of the liquid. If x_(A) and y_(A) are the mole fractions of A in the liquid and vapour, respectively find the value of x_(A) for which (y_(A)-x_(A)) has maximum. What is the value of the pressure at this composition?

The factor that influences the plants through the physical and chemical composition of the soils is:

How is cell wall different in composition in fungi and prokaryotes ?

Explain with a neat circuit diagram how will you determine unknown resistance 'X' by using meter bridge.