Question

sara poured some sand into a pan. how could sara best demonstrate wind erosion using this model? a. let a block of ice melt over the sand. b. blow into a drinking straw over the sand. c. pour a glass of water into the sand. d. use a spray bottle to moisten the sand with water.

Explanation:

Wind erosion is caused by the movement of air. Blowing into a drinking straw over the sand simulates wind - the air flow from the straw can move the sand particles, demonstrating wind erosion. Melting ice (A) is related to water from melting and not wind, pouring water (C) and moistening with a spray bottle (D) are related to water erosion, not wind erosion.

Answer:

B. Blow into a drinking straw over the sand.