Sulfur is a natural element.
Tires are a man made product made from natural resources. Early tires used natural resources from rubber trees, cotton plants, and sulfur. The cotton was spun into fibers that were used embedded in uncured natural rubber to strengthen it and the tire was cured using the sulfur in a process called vulcanization. Modern tires use natural resources from petroleum, iron ore, etc. The iron ore is made into steel which is made into steel fibers that are embedded in uncured synthetic rubber made from petroleum to strengthen it and the tire is cured.
It is natural but there are man-made imitations.
It can be made from natural or man made fibres.
Acid rain is a man-made disaster. When Chlorofluorocarbons, sulfur dioxide, and nitrogen oxides are released into the atmosphere we get that. Is it going to be decades to get the skies clear.
Sulfur is a natural element.
No, pollutants can be natural. Volcanoes often emit sulfur dioxide for instance.
Tires are a man made product made from natural resources. Early tires used natural resources from rubber trees, cotton plants, and sulfur. The cotton was spun into fibers that were used embedded in uncured natural rubber to strengthen it and the tire was cured using the sulfur in a process called vulcanization. Modern tires use natural resources from petroleum, iron ore, etc. The iron ore is made into steel which is made into steel fibers that are embedded in uncured synthetic rubber made from petroleum to strengthen it and the tire is cured.
Sulfur is an active natural life giving element.
It is natural but there are man-made imitations.
It can be made from natural or man made fibres.
natural feature
Is limestone natural or man made
Acid rain is a man-made disaster. When Chlorofluorocarbons, sulfur dioxide, and nitrogen oxides are released into the atmosphere we get that. Is it going to be decades to get the skies clear.
Man-made and Natural Resources
it is all natural
Rubber is man-made but has natural agents.