Hi. I love gardening, it really is great exercise.
Yes it is and back breaking!  Urban agriculture (gardening) reflects different ways of social and economic develpment.
Are you currently growing any crops this season?
Just a community garden locally. There are a wide variety of ways to do such gardening.  Even in a city.
It really is possible to grow crops anywhere these days. Even in a busy city. What plants/veg do you find most satisfying to grow?
Tomatoes have always been my favorite to grow.  This year in the community garden we are distributing the food to the elderly and disabled.