Answer:
They expanded their empire by trade.
Explanation:
The answer is: B. <span>negative reinforcer; positive reinforcer
Negative reinforcer refers to the type of stimulus that act as a punishment that discourage an individual from making a certain response/action.
Positive reinforcer on the other hand is a type of stimulus that act as a reward that encourage an individual to do a certain action.</span>
In this quotation from 1796, George Washington was warning America that having power would always lead to despotism unless there are different departments that restrict the head authority and balance the control of the government, instead of having the whole management of the country relying in only one person.
Britan and France are the two imperialist nations that controlled the most territory in Africa.
Heat is essential in melting rocks. Once the preexisting rock melts and then cools inside or on the earth's crust igneous rocks are formed. Heat and pressure are essential in the process of metamorphism. Heat can create new rocks from preexisting rocks by a process called contact metamorphism, forming rocks such as hornfels. Pressure can create foliated rocks such as schist's, slate and gneiss