Nails are made of iron because, iron is strong and sturdy; although nail rust when it undergoes oxidation when expose to water but it is not explosive.
Barium and phosphorus are not suitable for nail making because of their properties.
Barium is an element which reacts with virtually all non metals, forming poisonous products which are dangerous to health and to the environment. It also reacts explosively with water.
Phosphorus is not found in its pure form in nature, it conducts electricity and it is combustible in nature.<span />
Answer:
Biosphere
Explanation:
The biosphere contributes to life. The biosphere is important for the survival of our own lives, and it also it is the zone of the earth where the air, land, water, and other abiotic elements interact together to support our whole lives.
