Hello, to answer your question properly it is
C. <span>The waves emitted by the two sources have constant phase difference
Signed by, Virtuoso Sargedog
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Answer:
C
Explanation:
The Periodic Table organizes the elements according to their properties. One atom of each element is made up of protons, neutrons, and electrons. The number of electrons determines how an element reacts. The number of protons gives the element its identity.
Information integration (II) is the merging of information from heterogeneous sources with differing conceptual, contextual and typographical representations. It is used in data mining and consolidation of data from unstructured or semi-structured resources.
