One Vision by Queen
iron is needed to make haemoglobiniron is needed to make haemoglobin
iron core , coke and limestone are needed to make pig iron
Iron is needed to produce iron sulphate.
iron core , coke and limestone are needed to make pig iron
It's needed to make hemoglobin.
Iron
well people used iron to make weapons cause of they needed something to make weapons out of the suddenly a group of people found iron and a use of it. so they needed to be protect so they carved iron and make it there very own weapon. I KNOW THAT I WOULD ;D
Steel or iron will usually do it.
Hemoglobin contain iron.
Whenever water or air is around iron for a while it can rust because the iron bonds to the oxygen forming iron oxide.
I hate these stupid work sheets they always give you in science classes. but the answer is (IRON)
it was used to make things that needed steel