Question

During summer Khus Khus mats are used for cooling air are prepared from roots of
A.Saccharum Munja
B.Bambus nana
C.Vetiveria Zizanioides
D.Setariapumila

Answer 1

Hint: When water sprinkles on the mats. Mats keep hot air at bay. Khas is an aromatic grass that acts as a natural coolant.

Complete answer:
We all know that the Khus khus mat is an effective way to cool your home in summer. Sprinkle water on these curtains till they are drenching wet. Leave the windows or entryways that it is loomed over, open. The draft of hot breeze streaming into the house is cooled by the wet khus khus mat. They are a cheap and eco-friendly way to protect your house from heat as it doesn’t need any electricity. Also, it doesn’t emit any harmful gases that are leading to global warming. These gases are mainly produced by Air Conditioners. In today’s world where global warming is increasing at a very high rate because of the Greenhouse gas effect emitting from ACs, refrigerators, and so on. So it is a great alternative to control global warming and help our nature more healthily. Khus khus mats work on the principle of dry grass which can store a lot of water in it and when air passes through these mats gets cool down and reaches us giving us a cool sensation and lowers the temperature of the house. Khus khus mats are prepared from the roots of the plant vetiveria zizanioides. The common name of vetiver is commonly known as Khus. That’s why we call it khus khus mats as it is made from khus(vetiver). Vetiveriacan grows up to 5 feet tall. Leaves are long and linear with a sharp margin. Vetiver has a finely structured and powerful rooting system that can grow up to 13 feet deep under the soil. Vetiver roots are used in an evaporative cooler instead of straw or wood. Vetiver roots padding also counter the odor caused due to the growth of algae and microorganisms in such coolers. Such coolers are usually used in India.

Hence, the correct answer is option (C)

Note: Vetiveria roots are aromatic. As we discuss earlier they act as a natural coolant and are very long, so this root is more suitable for the preparation of khus khus mats than any other roots.