The gas present in the stratosphere which filters out some of the sun s ultravio

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The gas present in the stratosphere which filters out some of the sun s ultraviolet light and provides an effective shield against radiation damage to living things is

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1) The nuclear particles which are assumed to hold the nucleons together are

2) The most electropositive elements among the following is

3) The nucleus of a hydrogen atom consists of

4) The material which can be deformed permanently by heat and pressure is called a

5) The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3

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