V. Short Answer Type – II  ( any five)                                                  5 X 3 = 15 39. Explain the difference between thermoplastics and thermosetting plastics.

40. Explain how the use of CNG in automobiles has reduced pollution in our cities.

41. What is called blindspot?

42. Explain the usage of spring balance.

43. What precaution must be taken while taking antibiotics

44. Write short notes on Adam’s  apple any one know I mark you brainlest ​