How to upgrade the land wealth of mobile phone sims 3 free edition to the first level?

Click a button that looks like a building in the lower right corner of the game interface. If you have met the requirements and repaired the bridge, there should be a pattern that looks like a volcano (after clicking the button that looks like a building, there are two buttons, and the one on the right is a volcano). After clicking the button on the right, there is a button in the lower left corner of the map, which is called Land Wealth. As long as you meet all the requirements of materials, you can upgrade the land wealth.

As for the materials needed to upgrade the wealth of the earth, in fact, as long as you take any action on the villain, you will be given one at random after the action. If you don't have a button with a volcano pattern, it means that your bridge has not been built yet. Just click on the bubble on the bridge in the upper left corner of your town and then you can reach the volcano after the construction is completed, and then you can carry out the action of upgrading the wealth of the earth as I said.