Chemistry
Except mercury which is the other metal that is liquid at standard conditions for temperature and pressure

Magnesium
Bromine
Barium
Lead

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Chemistry
What are the components responsible for acid rain?

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

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