Recently seen in news Safe water releaser SWAS and Safe minimal aluminium SAFAL is associated with w...........

Environment and Ecology Air Pollution

Recently seen in news, Safe water releaser (SWAS) and Safe minimal aluminium (SAFAL)is associated with which among the following?

Greywater treatment modules

Artificial Intelligence based irrigation system

Less Polluting Firecrackers

Habitable outer space environment modules

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Explanation:

CSIR scientists had developed Less Polluting Firecrackers which are not only environment friendly but 15-20 % cheaper than the conventional ones. These crackers have been named as safe water releaser (SWAS), safe minimal aluminium (SAFAL) and safe thermite cracker (STAR).

SWAS crackers eliminates usage of (KNO3) Potassium nitrate and Sulphur with consequent reduction in particulate matter (30-35%) SO2 and NOx. It has matching sound intensity with commercial crackers in the range of 105-110 dBA.
STAR eliminates usage of KNO3 and S with consequent reduction in particulate matter (35-40%), SO2 and NOx. It has matching sound intensity with commercial crackers in the range of 105-110 dBA.
SAFAL has minimal usage of aluminium (only in flash powder for initiation) with consequent significant reduction in particulate matter (35-40 %) compared to commercial crackers.

Hence option 3rd is correct.