Sue poured some sand into a pan. which other item should sue add to the pan in order to model stream erosion? a. an electric fan b. a packet of grass seeds c. a block of ice d. a glass of water

The answer is D. a glass of water (Apex)

D. A glass of water

Stream erosion is the erosion caused by the stream of water typically from a river.  The water transports eroded sediments to other locations. In the given situation, the sand should be mixed with the water to form the stream erosion. As, water is the eroding agent for sand.