Answer:
-they opened trade to south
The "Elastic Clause" of the Constitution grants Congress power to pass unspecified laws "necessary and proper" for the exercise of its expressed powersImplied powers have often been controversialOver time, Congress's powers have grown as more and more kinds of government activity have been
The answer is C: Relative dating can only tell whether one rock layer came before or after another, while absolute dating can give the age in years.
