Paralegal

Answer: B - An apple is to an orange as a sparrow is to a robin. Apples and orange are both fruits, but different types of fruits, and a sparrow and a robin are both birds, but different types of birds. Snow and water are different forms of the same substance (water). A tree is a plant, and soil is not a plant, so the two are not different types of the same thing. Air is a naturally occurring gas, and smog consists of pollutants suspended in the air.