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 ​

What are the solutions to the equation 4x2+3x=24-x

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

Carla was trying to decide what to do saturday evening. she has $100 available to spend for the evening. she has narrowed her choices down to these events: braves game, a concert of an artist she likes, or the georgia aquarium. admission to the braves game is $25, hot dogs cost $10, sodas cost $5. the concert costs $25 for admission, $20 for a souvernir t-shirt, and $10 for a soda. the georgia aquarium has the show of a lifetime with an all you can eat and drink that costs $100. carla does not want to take any driving chances, so in addition to the cost of the aquarium, she will also need to pay for her uber/lyft, which is $15 each way. which option should carla choose if she wants to spend the least? based on that choice, what then is carla's oppotunity cost? fully explain your answer in at least one paragraph.