2. (a)   IS GIVEN IN CASE OF A CUT BY A RUSTED OBJECT.

3. A CRACKED OR A BROKEN BONE IS CALLED (a)  

4. WHEN A BEE STINGS, ITS (a)   REMAINS INSIDE THE SKIN.

5. (a)   IS THE SECOND LAYER OF THE ATMOSPHERE.

METEOROIDS THAT BURN UP IN THE ATMOSPHERE ARE CALLED (a)   .

7. THIS LAYER ENABLES US TO LISTEN TO RADIO PROGRAMMES (a)  

8. WATER VAPOUR PRESENT IN THE AIR IS CALLED (a)   .

9. THE PROCESS BY WHICH VAPOUR CHANGES INTO LIQUID ON COOLING IS CALLED (a)   .

10. KANGAROOS HOP ON THEIR (a)   .

11. (a)   JOINTS ARE PRESENT IN OUR ELBOWS.

12. NERVES ARE MADE OF NERVE CELLS CALLED (a)   .

13. THE FOOD THAT WE EAT IS OUR (a)   .

14. SEAFOOD AND IODISED SALT HELPS TO PREVENT (a)   .

15. (a)   IS A DISEASE CAUSED BECAUSE OF THE SALIVA OF ANIMALS.