Hard SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · 2016 . Sample Practice variant 4: Which service is primarily responsible for India’s maritime defence? A Postal Service B Indian Army C Indian Air Force D Indian Navy Submit Answer Show Explanation Mark as Completed Mark as Important Mark for Review
What is the SI unit of force? SOF National Science Olympiad (NSO/ISO) . Easy · Physics · 2017 See Explanation
Which river is a major river of western Rajasthan? SOF National Science Olympiad (NSO/ISO) . Easy · Science · 2022 See Explanation
Practice variant 3: Which mirror is commonly used as a rear-view mirror in vehicles? SOF National Science Olympiad (NSO/ISO) . Hard · Physics · 2018 See Explanation
Practice variant 4: Which process helps reduce soil erosion on steep slopes? SOF National Science Olympiad (NSO/ISO) . Hard · Science · 2023 See Explanation
Practice variant 2: Which cells help fight infections? SOF National Science Olympiad (NSO/ISO) . Medium · Biology · 2017 See Explanation