Question

10. Bile is stored in: 1 a. Liver b. Gall Bladder c. Blood d. Pancreas 11. Consider the following statements and choose the incorrect one. 1 a. Acetic Acid is found in vinegar b. Formic Acid is present in Ant’s sting c. Citric Acid is present in Tamarind d. Lactic acid is present in curd 12. Lichens are association of: 1 a. Algae and fungi b. An autotroph and a heterotroph c. A green plant and a non-green plant d. All of these 13 Ventilation in rooms work on the principle of: 1 a. Conduction b. Convection c. Radiation d. All of these 14. When the soil is too basic, plants do not grow well in it. To improve its quality what must be added to the soil? 1 a. Organic matter b. Quick lime c. Quick lime d. Calamine solution 15. Human beings can be categorized as: 1 a. Heterotrophs b. Autotrophs c. Parasites d. Saprophytes 16. Boojho wants to know why it is advised to use digital thermometer. 1 It is cheap and is available everywhere As it is digital it does not involve any contact for measuring temperature It does not involve use of mercury Every point can be seen by a ‘beep sound’. 17. Role of Hydrochloric acid secreted in stomach is: 1 a. Makes the medium acidic b. kills the bacteria that enters with food c. Protects the lining of stomach d. Both (a) and (b) 18. The process of depositing a layer of Zinc on Iron is called: 1 a. Sedimentation b. Galvanization c. Crystallization d. None of these 19. The layer of ________ gas in the atmosphere acts as a natural shield against ultraviolet radiations is: 1 a. Oxygen b. Nitrogen c. Carbon dioxide d. Ozone 20. Turmeric is a natural indicator. On adding its paste to acid and base separately, which color change would you observe? 1 a. Yellow in both acid and base b. Yellow in acid and red in base c. Pink in acid and yellow in base d. Red in acid and blue in base 21. Iron Pillar near the Qutub Minar in Delhi is famous for the following fact. Which of these facts is responsible for its stability? 1 a. It is more than 7m in height b. It weighs around 6000 Kg c. It was built more than 1600 years ago d. It has no rust after such a long period​

Answer 1

Answer:

10. liver

11.b

12.a

13.d

14.a organic matter

15.d saprophytes

16.a

17.d both a and b

18.c crystallizing

19.d ozone

20.a yellow in both acid and base

21.d it has no rust after such a long period