Which two punctuation marks are used to offset a parenthetical element in a sentence?

comma

semicolon

dash

hyphen

Why was kennedy concerned about the use of nuclear weapons

Statistics show that internet usage in the united states has grown from just 41% of households in 2000 to 77% of households in 2010. which of the following best describes how online shopping has added to cultural diffusion in the united states? it encourages people to purchase more than they normally would. it makes news and information about products available in an easy-to-consume format. it has allowed large corporations to expand into new states, creating more jobs. it makes goods more accessible to people who might not normally be able to get them.

How does the author foreshadow or hint at the changes that will occur in juan’s life