Riding down a river in an old canoe,if the discharge of the river does not increase and the river gets very wide and deep,the speed of the river will
A)decrease.
B)increase.
C)stay the same.
D)become unpredictable.

Question

Quizplus · Accepted Answer

According to the principle of conservation of mass, the discharge of the river (i.e., the volume of water passing through a given point per unit time) remains constant. Therefore, if the river gets wider and deeper, the velocity of the water must decrease to maintain the constant discharge rate. As a result, the speed of the river will decrease.

Riding Down a River in an Old Canoe,if the Discharge