Verified answer

Answer:

1. Colloids
2. Solution
3. Suspensions
4. Suspensions
5. Solutions

Explanation:

1. Smoke and Air is a colloid. Colloids are special solutions consisting of small particles that remain in suspension for a significant amount of time.
2. It is a solution. But it is also a mixture of liquid and gas.
3. A mixture of sand and soil forms a suspension. A suspension is a heterogeneous mixture in which some of the particles settle out of the mixture upon standing.
4. A mixture of sand and gravel forms a suspension.
5. Vinegar is the homogenous solution of water and acetic acid.

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