One type of molecular vibration that occurs when \({\text{C}}{{\text{O}}_{\text{2}}}\) molecules are exposed to IR radiation is illustrated in the diagram below.

Identify two other types of molecular vibrations that occur when \({\text{C}}{{\text{O}}_{\text{2}}}\) molecules are exposed to IR radiation. Illustrate your answer with appropriate diagrams.

Award [1] for stretching and bending without diagrams.

Award [1] for clearly illustrated diagrams without mention of stretching and bending.

Do not penalize if single lines drawn between atoms.

This part was answered generally very well, with little evidence of misunderstanding the chemistry involved.