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Class 9 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceWhy is waste segregation necessary?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 2Easy ScienceWhich of the following actions is an example of a green skill?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 1Easy ScienceWhy are energy-efficient devices useful?Class 9Earth as a System: Energy, Matter, and LifeEnergy flow in Earth systemsLevel 1Easy ScienceWhich action is an example of the principle of reuse?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 1Easy ScienceWhich statement best describes the main purpose of green skills?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 2Easy ScienceWhy are programmes such as World Environment Day observed?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 3Easy ScienceWhat problem is commonly caused by single-use plastic?Class 9Earth as a System: Energy, Matter, and LifeHuman impact on Earth systemsLevel 3Easy ScienceWhat is a beneficial use of organic waste?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 1Easy ScienceWhat is an environmental benefit of saving paper?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 2Easy ScienceWhich of the following is an effective way to reduce air pollution?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 2Easy ScienceWhich of the following is an example of responsible e-waste management?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 2Easy ScienceWhy are clean surroundings important?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 2Easy ScienceWhat does recycling mean?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 4Easy ScienceTree plantation is an environment-friendly activity associated with which skill area?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 3Easy ScienceWhat does a green economy promote?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 5Medium ScienceWhich of the following is a correct way to reduce waste?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 3Easy ScienceWhich of the following is a correct way to conserve water?Class 9Earth as a System: Energy, Matter, and LifeEnvironmental conservation and sustainabilityLevel 3Easy