1. Mass number is denoted by..........

2. The increase in blood pressure is due to narrowing of..............

3. Convection occurs only in.

4. How many types of aquatic habitats

5. The organ which controls the entrance of food and air in the relevant tubes is called.................

6. According to ............. Law Resistance is calculated by dividing voltage by current

7. The distance between two adjacent crests or troughs is called.........

8. Bile is released by

9. Our sun is.............. sized star

10. What is present in gastric juice?

11. The distance covered by a wave in one second is called

12. The living place of any organism is called

13. Voltmeter is used for measurement of............

14. Food becomes fine and soft by addition of..............

15. The largest artery is named as

16. The transfer of heat from a hot body to cold body without heating is called

17. The formula to find maximum number of electrons in a given shell is

18. Rate of flow of charge is called

19. Unit of electric current is.............

20. The shrillness graveness of a sound is called.

21. The whorl of sepals is called..........

22. Loss of water from surface of leaves of plants is called

23. The formation of ghee from vegetable oil is an example of.............

24. How many important modes are for transmission of heat?

25. ............... are reproductive organs of plants.

26. The ray of light which strikes the surface of other medium for its entry is called

27. Molecules which form polymers are called.........

28. The number of protons present in the nucleus of one atom of any element is called its

29. ................ Pushes the swallowed food intake into stomach

30. A material which emits heat