pipe lines are used world wide
Answer:
The average flow velocity of a river increases along its long profile. This makes sense; along the profile, more potential energy is converted to kinetic energy, increasing the velocity. This is only the average velocity however; a cross-section of a river shows that the velocity varies from one side to the other.
Explanation:
Answer: The type of natural resources that made the United states and Canada Wealth are rich supply’s of mineral, energy, and forest resources.