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

2. Unit of electric current is.............

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

4. How many types of aquatic habitats

5. A material which emits heat

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

7. The living place of any organism is called

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

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

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

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

12. ............... are reproductive organs of plants.

13. What is present in gastric juice?

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

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

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

17. The largest artery is named as

18. Molecules which form polymers are called.........

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

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

21. Rate of flow of charge is called

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

23. Mass number is denoted by..........

24. Voltmeter is used for measurement of............

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

26. The shrillness graveness of a sound is called.

27. Convection occurs only in.

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

29. The whorl of sepals is called..........

30. Bile is released by