What led to the increase in steel consumption seen on the graph?

Fossil fuels that became popular depends on steel production.
Fossil fuels that became popular depends on steel production.

Steel consumption increased when more people started to use computers.
Steel consumption increased when more people started to use computers.

More building construction is needed to provide for the needs of people.
More building construction is needed to provide for the needs of people.

More people started mining steel that are sold outside of the country.
More people started mining steel that are sold outside of the country.

To determine what led to the increase in steel consumption seen on the graph, we can analyze the given options:

1. "Fossil fuels that became popular depends on steel production."
This statement suggests that the popularity of certain fossil fuels is dependent on steel production. However, it does not directly explain the increase in steel consumption.

2. "Steel consumption increased when more people started to use computers."
This statement suggests a correlation between increased steel consumption and the use of computers. Computers typically require components made of steel, such as the casing. Therefore, increased demand for computers could contribute to higher steel consumption.

3. "More building construction is needed to provide for the needs of people."
This statement suggests that increased construction activity leads to greater demand for steel. Steel is commonly used in construction, such as in structural beams and reinforcements. Therefore, if there is a surge in building construction, it could lead to an increase in steel consumption.

4. "More people started mining steel that are sold outside of the country."
This statement suggests that increased mining of steel for export purposes contributes to higher steel consumption. While this could potentially increase overall steel production, it does not necessarily explain the increased consumption within a specific country or region.

Considering the options provided, it is most likely that the increase in steel consumption seen on the graph is due to more building construction needed to fulfill the needs of people. However, without additional information or the specific context of the graph, it is challenging to determine the exact cause of the increase in steel consumption.