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

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

3. The largest artery is named as

4. The living place of any organism is called

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

6. How many types of aquatic habitats

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

8. Convection occurs only in.

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

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

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

12. Voltmeter is used for measurement of............

13. A material which emits heat

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

15. The shrillness graveness of a sound is called.

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

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

18. Unit of electric current is.............

19. What is present in gastric juice?

20. Molecules which form polymers are called.........

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

22. Our sun is.............. sized star

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

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

25. Bile is released by

26. ............... are reproductive organs of plants.

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

28. Mass number is denoted by..........

29. Rate of flow of charge is called

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