The main concern of the US was with the spread of communism. Hence the wars we fought to try and stop the "domino theory" from coming true.
Answer:
The ignorance of the slaves was considered necessary to the security of the slaveholders. Not only did owners fear the spread of specifically abolitionist materials, they did not want slaves to question their authority; thus, |reading and reflection were to be prevented at any cost.
Okay so other ways to produce energy would be (just throwing out a few )
1 . Gum
2. Light (light wakes up your brain a proven fact)
3. Massage your ears (im serious it boost energy its proven)
4. Eat something whole grain
5. Listening to your favorite song
(Im serious for all these answers)
Hope I helped (:
Farmers is the answer you are looking for!
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xo ♥ -Cote