For browsers to connect to resources, the location or address of the resources must be specified. these addresses are called uniform resource locators (urls). all urls have at least two basic parts: the first part presents the used to connect to the resource and the second part presents the domain name. (one word in singular form, case insensitive, zero point if misspelled or incorrect form)

Ascientist successfully predicts the outcome of an experiment. you watch carefully and know he didn't cheat. the scientist's success shows that: a) the scientist knows absolute truth about this experiment; success is not possible unless you know the truthb) the scientist was just lucky; no one ever knows what's going on, so successful predictions require luckc) the scientist may know the truth, or at least know something that is close to the truth, or the scientist may have gotten lucky this time; you can't be absolutely sured) the scientist really was cheating, even though you didn't see the cheating; no one can get things right, except by cheatinge) the scientist spent the night at a particular hotel chain and go a free breakfast, giving the scientist the ability to do amazing things