Rocks and boulders deposited by the slow-moving river of ice are called a moraine.
(Rocks and boulders; deposited; by the slow-moving river of ice) (Rocks and boulders deposited by the slow-moving river of ice; are called; a moraine)
Rocks and boulders Rocks and boulders deposited by the slow-moving river of ice
deposited are called
by the slow-moving river of ice
a moraine