1) Find the mammals a) Ant b) Antelope c) Anas d) none of above 2) Choose non- renewable resources  a) Air b) Oceans c) Coal d) None of above 3) Gases contributing to ozone depletion are a) Nitrogen b) Oxygen c) Methane d) Hydrogen 4) Choose organs of digestive system a) Liver and nerves b) Stomach and gall bladder c) Spleen and heart d) All of above 5) Which is wish-bone? a) collar bone of birds b) vertebre c) skull d) pelvic bone

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