Different Surfaces

ECHO demonstrated different surfaces such as, tropical highlands, urban rooftops, tropical monsoon, tropical rain forest, semi-arid tropics, and hot humid lowlands. Each facing there different obstacles to grow crops that can sustain life. Tropical highlands face mountainous conditions and have lots of soil runoff. While rain forest face lots of rain which lead to poor soil. Urban rooftops grow on rooftops from trash like tires, carpet, and cans. Tropical monsoon have moderate rain and sometimes have long drought periods. Semi-arid tropics are mainly dry with a three month rainy season. Hot humid lowlands have a long rainy season and typically crops need to be grown on hill areas.