The Tiber River ran straight through Rome, which is helpful because the people never had to go too far to access it. The Tiber River provided people of Rome with water, food (from the fish), a place to wash and much more. The Tiber River helped the government save money (because the river provides so much, the government doesn’t have to pay for that stuff) and keep their people fed and clean.
The flat plains provided a great place to farm. Farming is very helpful for it provides food and jobs for people. With more jobs and more food available, more people come to live in that area. The flat plains provide food and jobs which helps the government keep their people happy and well-off.
These mountains help create a natural barrier for everybody in Rome and Italy. On top of that these mountains provide Italy with great resources, including coal, food, oil and much more! With the Alps providing resources and protection, the government will be able to protect and provide for their people easier.
The Tyrrhenian Sea helped in many ways. The sea provided people with a way to trade with the people of Corsica, Sardinia, Sicily, etc. It also provided a great food source with all the marine life living there. This helped the government keep people well-feed and it helped the government supply their people with goods.
Overall, I would say the Etruscans wanted to take over Rome because they had a good water source, they had protection and resources provided by mountains, they had a good food source and they were able to trade because of the Tyrrhenian Sea, and they had great farming land! So, wouldn’t you want a place like that?