Uranium 238 has 146 neutrons.
They isolated the area of China from outside places preventing things like invasion and impeded cultural diffusion and trade to a degree. Its one of the reason China holds a xenophobic attitude because it was created in relative isolation and its natural forms allowed it to be isolated so it helped to reject outside culture.
Answer:
b. Reinforcement contingencies
Explanation:
Reinforcement contingencies are the cause-and-effect relationships between the performance of specific behaviors and specific consequences.
These reveal specific behaviors which are followed by specific consequences.
In reinforcement contingencies, there is usually antecedents (what happens before a behavior takes place) and then consequences follow (what happens after a behavior took place).
Answer:
African Americans were forcibly brought in chains, made to work for little to nothing, prohibited from having an education, and eventually segregated from the whites by law.
Explanation:
not real sure of an explanation, but I hope this helps :)