Question

Which one is an oil yielding plant?
A. Helianthus annuus
B. Cajanus cajan
C. Pennisetum typhoides
D. Chrysanthemum cinerariifolium

Answer 1

Hint: The seeds of certain plants like cotton, sunflower are used to extract oil which can be edible. They are high in unsaturated fats, fatty acids.

Complete Answer:
- Helianthus annuus: It is commonly known as a sunflower plant. It is an annual plant which belongs to the family Asteraceae. It is used as an ornamental plant. It is also grown for its edible oil and fruit. The seeds of the sunflower yield oil.
- Cajanus cajan: It is commonly known as pigeon pea. It is a perennial legume from the family Fabaceae. It is a major source of protein. The seeds are eaten as vegetables.
- Pennisetum typhoides: It is commonly known as pearl millets. They belong to the family Poaceae. These plants can withstand drought. They are used in preparation of flat breads.
- Chrysanthemum cinerariifolium: It is a flowering plant which belongs to the family Asteraceae. They are perennial shrubs. The plant is used as an ornamental plant.

The correct answer is (A). Oil yielding plant is Helianthus annuus

Additional Information: The sunflower oil is cheaper than olive oil. It contains a high level of monounsaturated fats. It is also used in preparation of soaps. The cake left after the oil extraction from the seed is fed to the cattles.

Note: Sunflower grows best in full sun. They grow well in fertile, well drained moist soil. The sunflower seeds are eaten as whole seeds or the oil is extracted which is used for cooking, biodiesel.