According to sources, the most probable answer to this query is that poor delivery service if not well executed can have various effects on the social, economic and environmental problems. Such as increasing the cost value and reducing efficiency (economic), reduce consumer (social) and increase waste (environmental) production.Thank you for your question. Please don't hesitate to ask in Brainly your queries.
Often, waterfalls form as streams flow from soft rock to hard rock. This happens both laterally (as a stream flows across the earth) and vertically (as the stream drops in a waterfall). In both cases, the soft rock erodes, leaving a hard ledge over which the stream falls
