Question

water falling from clouds forms a rain drop because of what?
1.Cohesion
2.Adhesion
3.Viscosity
4.Covalent bonding

Answer 1

Answer:

Water droplets may grow as a result of additional condensation of water vapor when the particles collide. If enough collisions occur to produce a droplet with a fall velocity which exceeds the cloud updraft speed, then it will fall out of the cloud as precipitation.

Explanation:

hope it helps

Answer 2

Water falling from clouds forms a rain drop because of 1.Cohesion

• Due to surface tension of water, rain drops take up spherical shape while falling because it has minimum surface area . This shape is formed because of cohesive forces between the same water molecules.
• Cohesion refers to the bond formation between same type of molecules. Here, it refers only to water molecules.
• Water molecules form strong attractive forces with their neighbouring molecules and maintain the spherical shape.
• The ideal spherical shape turns into a drop because of gravity as it rolls on the surface.
• Hence, cohesion forms rain drops.