1. As carbon dioxide is absorbed by the ocean, it reacts with water and then carbonate ions to form what? 2. A material that tends to lose electrons is put into contact with a material that tends to...

1. As carbon dioxide is absorbed by the ocean, it reacts with water and then carbonate ions to form what?

2. A material that tends to lose electrons is put into contact with a material that tends to gain electrons. Why won’t electrons flow continuously between these two materials?

3. What is the primary difference between a battery and a fuel cell?

4. What else do fuel cells produce besides electricity?