This is the 151 section from Everyday Science. These questions and answers will be from Units, Ozone Layer, Bacteria and Sedimentary Rocks.
Ques No.1: Units of electricity consumed by 2500 watt air-conditioner in one hour are _______.
Ans: 2.5 units
Ques No.2: The phenomenon of ____________ the display of red and green lights in northern hemisphere is due to radiations from Ionosphere.
Ans: Aurora Borealis
Ques No.3: The meter installed in our homes measure electricity in ______.
Ques No.4: _________ prevents the ultraviolet radiation from entering the atmosphere.
Ans: Ozone layer
Ques No.5: One thousand watt power is called as _________.
Ans: 1 kilowatt
Ques No.6: Gypsum is a _________.
Ans: non-metallic mineral
Ques No.7: Bacteria help in the process of __________.
Ans: fermentation of biomass
Ques No.8: Sedimentary rocks are ______.
Ques No.9: Biogas is the common name of __________.
Ans: Natural Gas
Ques No.10: A moderator is used in nuclear reactor in order to __________.
Ans: slow down the speed of the neutrons