Please help me it’s due in 30 mins

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.

it's c (engineer's do their work with mechanical stuff not on any living being)