41. The water management act is complemented by the waste water charges act at
42. Ultraviolet radiation which is not lethal but harm to the organism is
43. If all the water vapour in the atmosphere were to condense and fall to the ground, the globe would be covered with about ______ of water.
44. The total mass of water vapour stored in the atmosphere at any moment is about ____ of the world's supply of precipitation.
45. The sun emits a maximum amount of radiation at wavelengths near ____, while the earth emits maximum radiation near wavelengths of ____.
46. Thickness of plastic cover permissible to use
47. The deadliest Tsunami in recorded history took place on
48. Environmental Protection Act was introduced in the year
49. Ganga Action Plan in India was launched in the year _________
50. The first global environmental protection treaty "The Montreal Protocol" was signed on September 26 in
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