How can analog signals vary Answer choices:
the wavelength and frequency can be changed in analog signals
the type of wave can be changed with an analog signal
analog signals can be converted into 1's and 0's
only the volume of analog signals can be changed
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Indentify 3 problems the early villagers faced

According to subpart d, research with children may be eligible for exemption when: the children will be asked to complete a surveythe research involves the use of educational teststhe children will be interviewed by the researcher.the research with children will involve participant observation with researcher interaction.

Whose political philosophy is mostly clearly reflected in the declaration of independence