What type of "time travel" did john herschel invent?

the correct answer is, the best example to support the information in this paragraph is the following.

the industrial revolution changed manufacture forever. one of the best examples to support the information in the paragraph was the textile industry. before the industrial revolution, people elaborated clothes by hand. they used wool and the clothes were hand-spun. but the industrial revolution brought new machines and technology that made this faster and cheaper. inventions such as the loom and the spinning wheel transformed the textile elaboration. cotton replaced wool and the product was fabricated more rapidly and at a better price.

answer: a

explanation:  

stocks and bonds are the two main classes of assets investors use in their portfolios. stocks offer an ownership stake in a company, while bonds are akin to loans made to a company (a corporate bond) or other organization (like the u.s. treasury). in general, stocks are considered riskier and more volatile than bonds.

savings accounts are just money in a bank- they are insured by the fdic for up to 250,000.   very little risk

the average mutual fund holds hundreds of different securities, which means mutual fund shareholders gain important diversification at a low price. which means if one stock or bond drops it will have very little affect on the mutual fund - again very little risk