A thin whitish haze lies above a road in the morning, but visibility is not severely reduced. What does it indicate?

Correct answer: Mist

Correct answer: B, mist. Mist is a light concentration of very small water droplets suspended in air, usually near the ground. It resembles fog, but it is generally thinner and causes less reduction in visibility. The wording “thin,” “whitish,” and “visibility is not severely reduced” points to mist rather than dense fog. Dense fog contains enough suspended droplets to obstruct vision much more strongly. Frost is not a floating haze; it appears as ice crystals deposited on cold surfaces. Hail is made of solid ice stones falling from strong storm clouds, so it would not appear as a gentle morning haze over a road. Option A is wrong because the question specifically says that visibility is not severely reduced. Option B is correct because mist is a weaker, less dense near-surface suspension of droplets. Option C is wrong because frost is a surface deposit. Option D is wrong because hail is precipitation in the form of falling ice. Memory cue: “Fog hides; mist lightly veils.”