Answer:
Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur.
The answer is D.
As children grow older and go into adulthood, their metabolism actually slows down. The older you are the slower your metabolism becomes. Obese children can find it extremely hard to have a healthy body composition as an adult.
<span>As people who are living in the same planet, it is important that we interact with one another and build a strong relationship because no one lives entirely independently of the others. From the choices, the obstacle in developing good relations is (b) people fear of taking risks. </span>
