Answer:
The Great Migration was the relocation of more than 6 million African Americans from the rural South to the cities of the North, Midwest and West from about 1916 to 1970. Driven from their homes by unsatisfactory economic opportunities and harsh segregationist laws, many blacks headed north, where they took advantage of the need for industrial workers that arose during the First World War.
Explanation:
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B.................................................
At birth, babies have 27 intrinsic reactions ready to go when they are a.r.o.u.s.e.d in particular ways. These automatic responses are referred to as reflexes.
<h3>What role do reflexes play?</h3>
Reflexes are almost instantaneous movements that happen unintentionally, unexpectedly, and in response to stimuli. They are sometimes referred to as reflex actions. Neuronal circuits called reflex arcs are capable of responding to input even before the impulse reaches the brain, allowing reflexes to occur.
<h3>What makes reflexes crucial?</h3>
Since there are physical changes and forces at work while you move, reflexes are essential since a quick reaction is required. They have to occur automatically as a result. Reflex responses allow your body to react in ways that keep you safe, support a straight posture, and keep you going.
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According to research, OPSEC countermeasures are planned actions to affect collection, analysis, delivery.
<h3>What is OPSEC?</h3>
It is a security and risk management strategy and process that classifies information and then determines what is required to protect sensitive information.
Applying the appropriate countermeasures is the last step in implementing an OPSEC plan that will reduce risks consisting of planned actions to affect collection, analysis, delivery.
Therefore, we can conclude that according to research, OPSEC countermeasures are planned actions to affect collection, analysis, delivery.
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Answer:
A. large and wealthy cities in the Gobi Dessert
B. small farming villages along the Indus River Vally
C. small farming villages along the Huang He River Valley
D. people living on the great wall of China
D is the answer