The correct answer for the question that is being presented above is this one: "(a)4." Suppose that during any period of 1/4 second there is one instant at which the crests or troughs of component waves are exactly in phase and maximum <span>reinforcement occurs, in 1 second, there will be 4 beats.</span>
To be referenced, it would be true
Water is treated by purifying it by adding slaked lime or potash alum
<span>If the entropy is greater than the enthalpy, it will have more spontinaity</span>
