B. normal atmospheric pressure is maintained by the use of air pumps
C. the pressure inside is less than the pressure outside
D. normal humidity and partial vacuum are maintained
Correct Answer
normal atmospheric pressure is maintained by the use of air pumps
More questions
1. The powers to legislate with respect to any matter not enumerated in any of the three lists are mentioned as residuary powers. Which of the following is empowered to determine finally as to whether or not a particular matter falls in this category