Surface tension
causes water to spread out
is the ability of water to dissolve a substance
creates a thin, elastic layer of hydrogen atoms
is caused by cohesion between water molecules on the surface

Answer : The correct option is, (D) Surface tension is caused by cohesion between water molecules on the surface.

Explanation :

Surface tension : It is caused by the cohesion between water molecules on the surface or we can say that it is a tension of the surface of liquid caused by the attraction of the particles which are present on the surface layer by the bulk of the liquid, which tends to minimize surface area.

And due to the surface tension phenomena the shape of the water molecule tend to assume a spherical shape to attain the minimum surface area.

Hence. the correct option is, (D) Surface tension is caused by cohesion between water molecules on the surface.

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

happy to

pls mark as brainliest