Which best describes the way photographs are considered by historians? a)primary source documents that are useful in the study of history b)reliable sources for the study of history only if from a named source c)secondary source documents that are useful in the study of history d)unreliable sources for the study of history because they are too subjective e)useful sources for the study of personal histories, but not for general history

can you give a picture of the map, i'll be able to update my answer!

jupiter is mainly composed of hydrogen and helium just like a star. spectral analysis of jupiter has revealed that in addition to hydrogen and helium, the planet is made of water, methane and ammonia. those elements are in trace amounts. the core of the planet is thought to contain some rock and metallic hydrogen. i hope this will give you the answer to your question! : d