What harm can be caused to human beings ...

What harm can be caused to human beings by U.V.radiations?

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MBD -HARYANA BOARD-OUR ENVIRONMENT-EXAMPLES

How many atoms of oxygen combine to form ozone?
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From what does ozone layer protect earth?
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What harm can be caused to human beings by U.V.radiations?
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What decomposes atoms of oxygen (O2)to free oxygen (o) at the higher l...
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Since when the level of ozone has started decreasing in atmosphere?
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What is the root cause of depletion of ozone layer?
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Where are CFC's mainly used?
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What agreKHOent was accepted by united nations environment programme (...
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How improvKHOent in our life style has affect grabage?
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Which type of garbage has increased with the change in packaging mater...
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Name any two water pollutants.
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The word 'ecosystem' was coined by
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Green plants are:
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Which organism is a decomposer?
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Grass-insect-frog-snake-hawk. In this food chain the secondary consume...
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Which one is a primary consumer in a pond ecosystKHO?
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Best arrangement of an energy system consists of hawks, snakes, mice a...
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They can be put in the category of promary consumers:
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……and…..are examples of non-biodegradables waster.
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…..and….are exapmples of artificial ecosystKHO.
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