Chemistry
The least preferred technique in the disposal of Municipal Solid Waste is

Composting
Land filling
Bricketting
Incineration

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Chemistry
What are the components responsible for acid rain?

Carbon dioxide (CO2) and Carbon monoxide (CO)
Nitrogen monoxide (NO) and Carbon monoxide (CO)
Sulphur dioxide (SO2) and Nitrogen oxides (NOx)
Oxides of carbon (COx) and Oxides of nitrogen (NOx)

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