Question

22 15. If it is taken as the distance (in metres) covered by a wheel of diameter 42 cm, in one 7 revolution is al 122 b) 66 fr) 120 (d) 121​

Answer 1

Answer:

During the night, the sounds are refracted downwards to the ground.

Answer 2

Answer:

31)C

32)D

33)A

34)C

35)D

36)A

37)B

38)C

39)C

40)A

41)C

42)A

43)B

44)A

45)

Step-by-step explanation: