music: 60's Chart Toppers: Name The Artist: Twenty Miles?

Questions

if a chemical is 'anhydrous' what does it not contain?

a gas produced by the incomplete combustion of coal in a mine fire is very poisonous, what is its chemical name?

what is the name for a narrow necked wine or spirit container of more than two gallon capacity?

what size of paper measures 297 x 420mm?

what is the storage polymer of plants?