Jamal wants to make a model of a hill near his house to test the way the slope affects how rain runs down the hill. which type of model would be best for what he needs? a. a scale drawing of the hill, looking down on it b. a scale drawing of a cross-section of the hill c. a scale-model mound made of the same materials that make the real hill d. a chart with measurements giving the height of the hill at various places on it