Chapter 01: Classroom Manual - Heating and Air Conditioning—History and the Environment Classroom Manual 1. Ozone has the same chemical properties as carbon monoxide. a. True b. False ANSWER: False POINTS: 1 QUESTION TYPE: True / False HAS VARIABLES: False DATE CREATED: 1/12/2021 1:38 PM DATE MODIFIED: 1/12/2021 1:38 PM 2. The most common gas in the earth’s atmosphere is oxygen. a. True b. False ANSWER: False POINTS: 1 QUESTION TYPE: True / False HAS VARIABLES: False DATE CREATED: 1/12/2021 1:38 PM DATE MODIFIED: 1/12/2021 1:38 PM 3. Most ozone is formed over the earth’s equator. a. True b. False ANSWER: True POINTS: 1 QUESTION TYPE: True / False HAS VARIABLES: False DATE CREATED: 1/12/2021 1:38 PM DATE MODIFIED: 1/12/2021 1:38 PM 4. The odor of a gas is not an indication of its toxicity.