Get Free NCERT Solutions of Human Environment Interactions , The Tropical and the Subtropical Region here. This chapter is included in Class 7 Our Environment (Geography) NCERT Solutions. Students can find all NCERT intext and exercise solutions of Human Environment Interactions , The Tropical and the Subtropical Region here. All NCERT Solutions are written in simpler language and are easy to understand for Students of Class 7. This will also be very helpful in completing homework and scoring good marks.