What is a light year supposed to measure ‍♂️?

A)Time
or
B) Distance
:)

Distance

Explanation:

The unit of measurement is time but it measures distance

B) Distance

Explanation:

A light-year is a measurement of distance and not time . A light-year is the distance a beam of light travels in a single Earth year, or 6 trillion miles.

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.