If on a clear night grass temperature falls below dew point but remains above freezing point, which form is most appropriate?

Correct answer: Dew because condensation will occur as liquid droplets

Correct answer: B, dew. The dew point is the temperature at which air becomes saturated and water vapour begins to condense. Since the grass has cooled below its dew point, condensation can occur on its surface. However, the grass remains above the freezing point, so the condensed water stays liquid and appears as droplets of dew rather than ice crystals. Option B is correct because it uses both pieces of information in the question. Option A is wrong because frost requires ice formation, normally when the surface is at or below freezing. Option C is wrong because droplets forming directly on grass are dew; fog forms when droplets remain suspended in the air and reduce visibility. Option D is wrong because nothing in the situation indicates cloud ice or falling precipitation. Memory cue: first check the dew point for condensation, then check the freezing point to decide between liquid dew and solid frost.