The correct answer is substance-related
Explanation: Substance-related disorders involve drugs that directly activate the brain's reward system. Activation of the reward system usually causes feelings of pleasure; The specific pleasure sensations evoked vary widely, depending on the drug. These drugs are divided into 10 different classes that have different but not completely different pharmacological mechanisms.
Because it helps increase the money the government is receiving. and or because they want the people in the country to buy from one another and not export and import it
Answer:
The Vikings: The Vikings' early expeditions to North America are well documented and accepted as historical fact by most scholars. Around the year 1000 A.D., the Viking explorer Leif Erikson, son of Erik the Red, sailed to a place he called "Vinland," in what is now the Canadian province of Newfoundland.
Explanation:
They have more advanced technology
The congress determines the presidents salary!
