What inference can you make about the effect of tides on health in jamestown

Jamestown was situated on a site that was too secluded for agriculture, in fact, the entire island was isolated because it was swamp-like and infested with mosquitoes and the only water came from tidal rivers. This water was unsafe to drink, which could cause health problems such as cholera, typhoid or dysentery. 

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