Answer :
The letter of each sentence that is true about water's surface tension is -
- a. It helps some insects "skate" across the surface of the water.
- b. It refers to the tightness across the surface of the water.
- d. It causes raindrops to form round beads.
The property of cohesion of water molecules is the attraction force between molecules of water causes the sticking of the water molecules and surface tension is a type of this property where water molecules remain joined together while they are moving.
Surface tension is:
- Tightness across the surface of water due to hydrogen bonding causes polarity.
- Attraction force work between molecules
- Small insects can skate or walk on water
- Causes raindrops to form round beads when they fall.
Thus, the correct answer is - a, b, and d.
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