Evolution happens by which process? A Passing on traits acquired during the organism's lifetime
B Mutating to survive
C The fossil record shows no evidence of evolution
D Natural selection

It's either B. mutating to survive or D. natural selection. I'm just going off what I remember in the lesson. I strongly think D. natural selection though. If I'm wrong I'm sorry.

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.

the correct answer is:

a. formation of precipitation