1. In fish liver oil there is______: Vitamin A and Vitamin D
2. When day and night are equal? 21st March and 23rd September
3. What is total number of combinations of 09 things taken 03 at a time? 84
4. The chemical formula of alum is______: KAI(SO4)2.12H2O.
5. If the radius of a circle is increased three times then its area is increased______: Nine times
6. One degree of longitude on the equator is equal to a distance of______: 69 miles
7. The protein molecule is made of______: Long range chain of amino acids
8. The minimum amount of vitamin stored in the human body is of______: Vitamin C
9. The isotopes of any element contain equal number of______: Protons
10. The Ph of soil is raised using______: Lime stone
11. Which of the following is used for measuring distance? Light year
12. Which of the following contains a greater number of carbon atoms in one mole of each compound? Ethanol
13. A pencil dipped in water appears bent due to______: Refraction
14. Fishes die outside the water due to______: Non-absorption of oxygen
15. In dementia a person______: Loses his weight, Loses thinking and writing, Loses thinking, remembering and reasoning
16. Earthquake is measured by using the instrument______: Seismograph
17. A cyclone is formed_______: When warm, moist air rises upward over the ocean
18. Why red light is used in traffic signal for danger? It has long wavelength and short frequency
19. The heavy water is______: Denoted by D20 and contains deuterium
20. The ionosphere is located within the thermosphere and extends______: From 60-300 km above the Earth’s surface