The upper class makes up about 25 percent of the population in the united states. a. true b. false

Option b. The following statement is false: The upper class makes up about 25 percent of the population in the United States.

Explanation:

Lower, Middle and Upper classes are based on the income that the adults in a household receive. In 2015, the majority of the United States citizens were in the middle class, approximately 52 percent of the population. The lower class represented the 29 percent of the population, while the upper class represented the 19 percent of the population. In the case of the upper class, it is important to specify that within that 19 percent there are located the highest incomes in the country, that are far superior than the majority of the average upper class income.

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

i wish i could with all of them i can barley see the first one so here's the answer to the first one b