The Jordan River originates near the borders of three countries, Israel, Lebanon, and Syria, with most of the water derived from the Anti-Lebanon Mountains and Mount Hermon to the north and east.
If 1+1 is 2, so it explain the existance of the world...
Efficacy is getting matters. it's far the potential to produce a desired amount of the desired effect or fulfillment in attaining a given intention. efficiency is doing things in the maximum low-priced manner. it's far the ratio of the output to the inputs of any device (appropriate input to output ratio).
Efficacy and effectiveness are close enough which means that they're regularly used interchangeably in contexts. however, effectiveness is regularly extra especially used inside the context of the way something accomplishes an assignment while efficacy conveys the quantity to which something accomplishes its task in any respect.
Learn more about efficacy here:
brainly.com/question/10575222
#SPJ4
The systematic study of human population is called, demography.