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| Q.19 | Four words of the following sentence have been underlined and given as options. Select the option that contains a spelling error. Ozone is a reactiev gas that is not only important in protecting us from harmful ultraviolet radiation but is also a greenhouse gas and, at high smog-level concentrations, harmful to human health and vegetation. | |
| Ans | 1. vegetation | |
| 2. concentrations | ||
| 3. radiation | ||
| 4. reactiev |
Correct Ans Provided: 4
