How is helium, which is produced by the conversion of hydrogen into energy, related to the solar core? a) helium depletes the solar core, which is gradually decreasing in size. b )helium causes the solar core to gradually cool down. c) helium forms the solar core, which continually increases in size.

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.