A primary source is a source that has direct knowledge of the idea. it can be from the person who saw it or the person who did the original research. Primary source is in contrast to secondary source - a source that is quoting or gathering information from primary sources. the terms primary and secondary are relative terms.For example, a research based on other peoples words, can be a secondary source. however, compared to Wikipedia, it would be a primary source.
the scource is most likely the water but you should check the internet. Good Luck homy-G!!
milk
bread
In electricity yes.
Yes it is for eample a burning stick
12 scource.
Water is not a scource of light.
Pittsburgh
no, well depends on what your looking up! =-) xx
Yes it is because it helps us with cancer.
it lets the energy flow from the power scource to load
655.000 not goo at all (from a reliable scource)