(1 point) Select True or False from each pull-down menu, depending on whether the corresponding statement is true or false. True 1. A marketing research firm divides the population of a state into geographic regions, and randomly selects some of the regions and takes a simple random sample of each selected area. This is a cluster sampling.

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

b

step-by-step explanation: sorry if not correct becaude my brother is loud and i could not think!