thank you for your good and nice answers. Of course I want to write more, but I was not at home.
At the moment I have
a little farm,
The next goal is the working with minerals.
The rubbish could be stored in this hole, before I bring it in another bigger stone area - but well, I have to figure out how that really work :D
To provide a efficient output, I want a bigger building or an industrial area. As I need a flat area, I began to drive away the dirt. The carts are really helpful and are necessary for town development. I builded another one as the first one disappears for some hours O.o
To store the dirt until I need it, I build another small house.
Well thats not so much, but in the near future I have more time to play eco.
There is enough place to build up a really nice industrial complex....