What problems did the invention of food preservation solve?
What will be an ideal response?
Before the invention of food preservation, fruits and vegetables were not available
during colder months. Likewise, if animals were not killed regularly, there was no meat.
Also, before food preservation, it was difficult to feed armies and other people traveling
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What are the two situations in which a cardinal change can be invoked?
What will be an ideal response?
What is the true power in a 2A series RL circuit with a 100? resistor?
a. 50W b. 200W c. 400W d. 600W
In a PM modulator let the information signal be 
and let the carrier be sin 
Graph the modulator output signal for the time range 
for three different values of the modulation index 
What will be an ideal response?
The Quebec Act
A. outlawed Catholicism in British Quebec. B. provoked outrage among American colonists because it sustained unrepresentative colonial assemblies and denial of jury trials in Quebec, setting a dangerous undemocratic precedent in America. C. restricted Quebec's boundaries to the area north of the Great Lakes. D. was generally ignored by the thirteen seaboard colonies because it had little effect on their relations with Britain. E. granted Quebec a representative assembly and trial by jury.