What is global warming? a) a recent increase in the average global temperature near earth’s surface b) a period of time when temperatures across the planet are colder than normal c) a characteristic of summer that returns seasonally d) the gain of heat in coastal areas from el niño storms

Global Warming is a gradual increase in the overall temperature of the earth's atmosphere.

So, i believe the answer to your question would be a) a recent increase in the average global temperatures near Earth's surface

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.