Civil Services OPSC OAS Mock Test Series 2025 General Knowledge Ecology and Environment Environmental pollution
Which of the following statements is/are correct related to the eco-system?
(i) Ozone is a molecule formed by three atoms of oxygen.
(ii) Oxygen (O2) is essential for all aerobic forms of life.
(iii) Ozone is non-poisonous.
1
(i), (ii) and (iii)
2
Only (i) and (ii)
3
Only (i) and (iii)
4
Only (i)