Ques No.1: The gas which acts as a glass of greenhouse is _________.
Ans: Carbon dioxide
Ques No.2: In a railway track, two rails are joined end in end with a gap in between them ______
Ans: To avoid accidents due to expansion.
Ques No.3: All forms of energy that we use are ultimately transformed into _________.
Ans: Heat energy
Ques No.4: Animal which captures and readily kills living animals for tis food is called _________.
Ques No.5: Air is present in the atmosphere of earth up to the height of _________.
Ans: 200 kilometres
Ques No.6: The fruits with seed, like banana, are called ___________.
Ans: Parthenocarpic fruits
Ques No.7: In BTU system, one BTU is equal to __________.
Ans: 1055 joule
Ques No.8: __________ in quartz watches work on the principle called Piezo-electric effect.
Ans: Quartz crystal
Ques No.9: Gas bills are charged in _________.
Ans: CGS and BTU
Ques No.10: _______ is associated with Desert.