Complete the incomplete sentences with the appropriate form of be or

Complete the incomplete sentences with the appropriate form of be or have.

The boiling point of water 212 F.
Carbon monoxide and sulfur oxides the most common pollutants.
Invertebrates no backbones.
Benzene six carbon atoms and six hydrogen atoms
Our solar system nine planets.
Scientific textbooks quite expensive.
Paleontology the study of fossils and other forms of life.
Iron and potassium both ten isotopes.
An evergreen tree leaves all year round.