Agriculture in Haryana is heavily dependent on:

Irrigation
Rainfall
Snowmelt
Natural springs

The correct answer is irrigation.

Haryana is a state in northwestern India. It is located in the Indo-Gangetic Plain and has a semi-arid climate. The average annual rainfall in Haryana is about 700 mm. However, the rainfall is unevenly distributed, with most of it occurring during the monsoon season (June-September). This means that agriculture in Haryana is heavily dependent on irrigation.

Irrigation is the artificial application of water to land to assist in the growing of crops. It is used to supplement rainfall and to ensure that crops have enough water to grow during dry periods. Irrigation can be done using a variety of methods, including canals, wells, and drip irrigation.

In Haryana, irrigation is mainly done using canals. The state has a network of canals that are fed by the Yamuna River. The canals are used to irrigate crops such as rice, wheat, and sugarcane.

Irrigation is essential for agriculture in Haryana. Without irrigation, it would be difficult to grow crops in the state’s semi-arid climate. Irrigation helps to ensure that crops have enough water to grow and produce a good yield.

The other options are not as important for agriculture in Haryana. Rainfall is not always reliable in the state, and snowmelt and natural springs are not available in most parts of the state.