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Two shirts becomes thicker, so prevent the transmission of Heat.
Layer of Air act as a conductor of Heat between two thin shirts.
Layer of air act as an insulating medium between two shirts.
Radiation of heat does not take place.
Why white clothes are cooler as compare to black clothes?
Widespread resistance of malarial parasite to drugs like chloroquine has prompted attempts to develop a malarial vaccine to combat malaria. Why is it difficult to develop an effective malaria vaccine?
Wilhelm Rontgen invented
William Frederick is credited with the invention of the modern Frisbee in the mid 1950s. In 1957 the Wham-O Company bought his idea and the rest is history. They named the toy after William Frisbee who was a _?
Wilting in plants occurs because of
Wood is the main raw material for the manufacture of
Wood Spirit is which of the following ?
X-rays cannot pass through
Xenobiotics which are inherently resistant to microbial attack are called as
Yeasts moulds are examples of