Explanation:
Iron has many uses but as far its chemical properties and the given options are concerned, following uses of iron are due to its chemical properties:
* When iron is put into fire, it produces sparks which are colored, which are not produced by mostly metals. Its purely because of the chemical properties it possess.
* When iron is placed in the water and oxygen, it rusts. When we place iron outside in the open air, when it is thrown some water, after few days you will see that iron has started rusting. This process is purely depends on the iron's chemical properties.
Poor ventilation to places that may need it such as apartments resulting in the death or a strong illness of infants and small animals, illness such as bronchitis and pneumonia can become more and more frequent in highly polluted areas. That being said pneumonia can cause excessive coughing (bronchitis does this to) and deathly high fevers. And that's just pollution in the form of smog. Water pollution can cause fishermen and farmers to be unable to harvest or catch food leading to them loosing business, money, and supplies. Just as well The water can pollute the ground people farm with, and people who accidentally swim in or drink the polluted waters by accident can be poisoned by a whole slew of various things. Hope that helped, msg me if you need more accurate info.
