Coursework in earth science can include elements of the land, water, and air on Earth and beyond. It may concentrate on knowledge for scientific research, as well as applications to understand and improve life on the planet.

Mexico, officially the United Mexican States, is a federal constitutional republic in North America. Working may require a work visa, which is difficult to get if you want to freelance for a short time. Most of the government-funded universities in major cities (state capital) have short courses on history, gastronomy, and cultural subjects, and most of them are almost free.