3901. Fan was invented by______?
✅ C. Skaats Wheeler
Everyday Science MCQs – Page 196
3902. PSR J0108-1431 is the closest known ____ to Earth?
✅ D. Pulsar
3903. Which Planet has purple rocks according to NASA ?
✅ D. Mars
3904. The chemical name of “Acid” (Tezaab) is______?
✅ B. Sulfuric acid
3905. Fathom is the unit of measurement for_____?
✅ A. Depth
3906. The function of hemoglobin is_______?
✅ B. Transportation of oxygen
3907. Rate of evaporation of petrol is greater than that of water at room temperature because:
✅ B. petrol molecules do not have any hydrogen bond
3908. Twinkling of stars is caused by ?
✅ C. refraction of light
3909. A dolphin perceives its environment by the sense of_____?
✅ C. Both of these
3910. Meteorology is the study of?
✅ A. Atmosphere
3911. The areas around the North and South poles within the Polar circles is called ________?
✅ A. The Frigid Zone
3912. Pathology is the study of_______?
✅ A. Disease
3913. Second name of ethyl alcohol is______?
✅ A. Ethanol
3914. Cause of Malaria is ___?
✅ C. Mosquito
3915. Day and night are the results of_____?
✅ B. Earth rotation around its axis
3916. Isobars are the lines connecting the places having same:______?
✅ B. Pressure
3917. The expected number of RBCs in a single drop, or microliter, of blood is ____ million in Men.
✅ B. 4.5 to 6.2 million
3918. What is the world’s warmest Sea?
✅ B. Red Sea
3919. The metal, which is a constituent of vitamin B12 is_______?
✅ D. Cobalt
3920. If there is no capillarity?
✅ D. All of above