Answer:

1. Keep it clean and dry.

2. The two factors are water and oxygen

Explanation:

Oxygen in water molecules (H2O) combines with iron to form iron oxide.

1. Coat it with Oil - Use of oil or grease significantly reduces the chances of developing rust in iron. Basically, oil or grease form a protective layer over iron just as paint does and therefore prevent rust formation.

2. It forms when iron and oxygen react in water or in moisture in the air. The reaction of iron and chloride underwater is also referred to as rust. Certain factors speed up the rusting process, such as salt in the water.