State three elements added in a steel making process to dissolved oxygen?

1. Aluminum: Aluminum is added to steel during the steel making process to react with oxygen and form aluminum oxide, which helps to remove oxygen from the steel.

2. Silicon: Silicon is added to steel to form silicon oxide, which also helps to remove oxygen from the steel.

3. Calcium: Calcium is added to steel to form calcium oxide, which reacts with oxygen and helps to remove it from the steel.

1. Aluminum
2. Manganese
3. Silicon