Answer to Question 1
Ask some of the following questions: Who is responsible for the site? For example, gov and edu indicate government and university sites, usually reliable sources of information.
Do the names and credentials of information providers appear? Many legitimate sources provide e-mail addresses or other ways to obtain more information about the site and the information providers behind it.
Are links with other reliable information sites provided? Reputable organizations almost always provide links with other similar sites because they want you to know of other experts in their area of knowledge. Caution is needed when you evaluate a site by its links, however. Anyone, even a quack, can link a webpage to a reputable site withoutthe organization's permission. Doing so may give the quack's site the appearance of legitimacy, just the effect the quack is hoping for.
Is the site selling a product or service? Commercial sites may provide accurate information, but they also may not, and their profit motive increases the risk of bias.
Does the site charge a fee to gain access to it? Many academic and government sites offer the best information, usually for free. Some legitimate sites do charge fees, but before paying up, check the free sites. Chances are good you'll find what you are looking for without paying.
Answer to Question 2
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The leaf is usually the primary site of photosynthesis in plants.
Evidence for big game hunting by archaic H. sapiens is suggested by the excavations at the Boxgrove
Steric interactions determine peptide conformation
How to determine if a table of values represents a function
Nutrition-related research findings are often lead stories in newspapers, magazines, and on websites
Older Adults Benefit from Good Nutrition and Physical Activity Older adults