A! If you think of droplets as cells then it makes a lot more sense that it would be called a condensation nuclei
Condensation nuclei are small particles in the atmosphere where water vapor condenses to form cloud droplets, making option A the correct answer. They are essential for cloud formation. ;
Condensation nuclei are small atmospheric particles that enable water vapor to condense and form cloud droplets. They are essential for cloud formation, as they provide a surface for condensation to occur when the air is cool and humid. Therefore, option A is the correct answer.
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