The largest irrigated area in the world is____
a) India
b) China
c) Russia
d) Australia

Hint: In order to ensure that they can grow enough feed for their animals and to preserve paddock health, stock farmers use irrigation. Many new varieties of crops and plants need daily moisture, which has resulted in increased interest in irrigation. To produce many of the things that feed your family, water is important for farmers. In crop production, irrigation also has other applications, including frost control, the suppression of weed growth in grain fields and the prevention of soil consolidation.

Complete Answer:
- Rising irrigated area & high demand for water since 2010, China has become the country with the largest irrigated area, reaching 66.1 million hectares in 2015. In the United States, this is more than 3x the scale of irrigated areas (20.2 mn hectares). China's gross irrigation water use stood at 340 bn m3 as of 2013.
- China and India are the two countries with the largest irrigated land area, which make up 21.3% and 20.6% of the worldwide irrigated land area, respectively. Increasing irrigated area & high demand for water China has been the country with the largest irrigated area since 2010, and its irrigated areas reached 66.1 million hectares in 2015. In the United States, this is more than 3x the scale of irrigated areas (20.2 mn hectares). China's gross irrigation water use stood at 340 bn m3 as of 2013.
- Among those steps, agricultural irrigation has made the most important contribution to rising crop yields and reducing poverty in rural areas (Huang et al. 2006). Irrigation stabilizes crop production, increases crop quality, decreases rural poverty and enables farm production to be diversified.

Hence, the correct answer is option b).

Note: The oldest and longest man-made waterway in the world is a UNESCO World Heritage Site as well. The Beijing-Hangzhou Grand Canal, spanning more than 1,100 miles and 2,500 years of history, connects five of China's major rivers.