Matching Pairs India Geography terms MatchingOnline version Match the term to the definition or how the landform effected India by Cathy Pittman 1 Protects the Indus Valley from invasions. Can also cause isolation. 2 Made farming difficult and only possible with irrigation. 3 India is separated from the rest of the continent, allowing the civilization to develop its own culture. 4 Large, fertile area for agriculture and development in northern India. 5 Triangle shaped, unfertile area in southern India. Cotton is the main crop. 6 Strong winds that blow in opposite directions depending if it is summer or winter. Summer storms bring much needed rain that can cause devastating flooding. 7 Primary freshwater source. Carried water for irrigation and silt to produce rich farmland from the Himalayas to the Arabian Sea. 8 Important Link for trade; joins the Brahmaputra River as it flows into the Bay of Bengal. Indus River Subcontinent Thar Desert Monsoons Ganges River Deccan Plateau Himalaya Mountains Indo-Gangetic Plain