✅ Answer: C) CottonCotton is a Kharif crop — sown in June-July and harvested in September-October. Wheat, barley, and mustard are Rabi crops — sown in October-November and harvested in March-April. Other Kharif crops: rice, jowar, bajra, maize, jute, groundnut, soybean. Other Rabi crops: gram, peas, linseed.

✅ Answer: B) M.S. SwaminathanM.S. Swaminathan is called the “Father of Green Revolution in India.” He introduced High Yielding Variety (HYV) seeds of wheat and rice in India in the mid-1960s. Norman Borlaug is called the “Father of Green Revolution” globally. Verghese Kurien is the “Father of White Revolution” (Operation Flood). C. Subramaniam was the Agriculture Minister who supported the Green Revolution.

✅ Answer: B) West BengalWest Bengal is the largest jute-producing state in India, accounting for about 50% of India’s jute production. Jute is called the “Golden Fibre” because of its golden colour and economic importance. It grows in alluvial soil with high rainfall. India is the world’s largest producer of jute. Bangladesh is the second largest.

✅ Answer: B) Sutlej and Beas (Harike Barrage)The Indira Gandhi Canal (formerly Rajasthan Canal) draws water from the Harike Barrage at the confluence of the Sutlej and Beas rivers in Punjab. It is the longest canal in India (~650 km main canal + 9,000 km distributaries). It has transformed the Thar Desert of Rajasthan into agricultural land.

✅ Answer: B) KarnatakaKarnataka is the largest producer of coffee in India, accounting for about 70% of India’s coffee production. The main coffee-growing districts are Coorg (Kodagu), Chikmagalur, and Hassan. Coffee is grown in laterite soil under shade trees. India produces mainly Arabica and Robusta varieties. India is the 6th largest coffee producer in the world.

✅ Answer: C) South IndiaTank irrigation is most common in South India — Tamil Nadu, Andhra Pradesh, Karnataka, and Odisha. This is because the Peninsular rivers are seasonal and the hard rock terrain makes well-digging difficult. Tanks (reservoirs) store rainwater for irrigation. Tamil Nadu has the largest number of tanks. Famous tanks: Nagarjuna Sagar, Mettur.

✅ Answer: C) Wheat and RiceThe Green Revolution primarily benefited wheat and rice. HYV seeds of wheat (Sonalika, Kalyan Sona) and rice (IR-8 “Miracle Rice”) were introduced. Wheat production tripled in Punjab and Haryana. A major criticism of the Green Revolution is that it ignored millets, pulses, and other crops, leading to nutritional imbalances.

✅ Answer: A) KeralaKerala is the largest producer of rubber in India, accounting for about 90% of India’s rubber production. Rubber is grown in laterite soil with high rainfall. India is the 4th largest producer of natural rubber in the world. The rubber plant (Hevea brasiliensis) was introduced to India from Brazil by the British in the 19th century.

✅ Answer: C) Drip irrigationDrip irrigation is the most efficient method of irrigation — it delivers water directly to the root zone of plants, minimising evaporation and runoff. It can save 30-50% water compared to conventional irrigation. It is most suitable for horticulture crops (fruits, vegetables). Maharashtra and Gujarat are the leading states in drip irrigation adoption.

✅ Answer: B) Fix atmospheric nitrogenPulses (legumes) are important for soil health because they have nitrogen-fixing bacteria (Rhizobium) in their root nodules. These bacteria convert atmospheric nitrogen into ammonia, which enriches the soil. This reduces the need for nitrogen fertilisers. Pulses are also important for food security as they are rich in protein. India is the world’s largest producer and consumer of pulses.