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

2. Our sun is.............. sized star

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

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

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

6. The largest artery is named as

7. What is present in gastric juice?

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

9. Bile is released by

10. How many types of aquatic habitats

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

12. Mass number is denoted by..........

13. A material which emits heat

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

15. The shrillness graveness of a sound is called.

16. The whorl of sepals is called..........

17. Molecules which form polymers are called.........

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

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

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

21. Voltmeter is used for measurement of............

22. Convection occurs only in.

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

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

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

26. The living place of any organism is called

27. ............... are reproductive organs of plants.

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

29. Unit of electric current is.............

30. Rate of flow of charge is called