Final answer:
Treaties can expire due to specific congressional time limitations, which is true. The necessary and proper clause is commonly seen as expanding rather than limiting federal government powers, making the statement false. The Treaty of Paris ignored the American Indians, which is true.
Step-by-step explanation:
Treaties may include specific provisions for expiration, such as a congressionally imposed time limitation, though this is not the only way a treaty can expire or be terminated.
For example, treaties can also end if the parties mutually agree to terminate it, if the treaty is superseded by a later treaty, or if the subject matter of the treaty becomes irrelevant or impossible to perform. Therefore, the statement that treaties may expire because of a specific congressional time limitation is true.
Exercise 9.3.1
In contrast to the suggestion that the necessary and proper clause limits the power of the national government, the clause actually provides flexibility for the federal government to carry out its enumerated powers and has generally been interpreted as an expansion of those powers. Thus, the correct answer is that the statement is false.
Exercise 8.4.1
The Treaty of Paris did indeed largely ignore the implications for American Indians, making the statement true as the treaty failed to address the Indian tribes' situations directly.