Which of the following came to India as a contaminant with imported wheat

Parthenium

The correct answer is Option (2) → Parthenium

Parthenium has rapidly spread and become widely distributed in India. It has adapted well to different climatic conditions and is commonly found in various habitats such as agricultural fields, roadsides, wastelands, and disturbed areas. Its ability to produce a large number of seeds and adapt to different environments has contributed to its widespread occurrence. Parthenium is known to cause allergic reactions, particularly through its pollen. Many individuals are sensitive to Parthenium pollen, and exposure to it can lead to symptoms such as respiratory allergies, skin rashes, and asthma. The release of Parthenium pollen into the air during flowering season can result in significant health issues for people who are allergic to it. Parthenium, also known as carrot grass or congress grass, was introduced to India as a contaminant along with imported wheat. It is believed that the seeds of Parthenium were unintentionally mixed with wheat seeds during importation.