claim: Levoamphetamine improves the ability to focus on tasks.
evidence: Irrigation in India includes a network of major and minor canals from Indian rivers , groundwater well based systems , tanks , and other rainwater harvesting projects for agricultural activities .. India. India. rainwater harvesting. rainwater harvesting. Irrigation. Irrigation. Of these groundwater system is the largest .. In 2010 , only about 35 % of total agricultural land in India was reliably irrigated .. India. India. About 2 / 3rd cultivated land in India is dependent on monsoons .. India. India. Irrigation in India helps improve food security , reduce dependence on monsoons , improve agricultural productivity and create rural job opportunities .. India. India. Irrigation. Irrigation. food security. food security. agricultural productivity. agricultural productivity. Dams used for irrigation projects help produce electricity and transport facilities , as well as provide drinking water supplies to a growing population , control floods and prevent droughts .. growing population. population control. control floods. flood control