Which of the following is the uppermost layer of the atmosphere?
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Ornithophily is effected by
The outermost layer of sun is called
Who was the first lady Governor of an Indian State?
The first Muslim to be elected President of 'Indian National Congress' was?
In India, the Air (Prevention and Control of Pollution) Act came into force in 1981, but was amended in ________ to include noise as an air pollutant.
Where was Mahatma Gandhi born?
In water treatment plant, use of chloramines ensures __________