Sound travels_______ in solid materials then liquid?
Sound travels_______ in solid materials then liquid?A. Constant
B. Slowest
C. Fastest
D. None of these
B. Slowest
C. Fastest
D. None of these
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The setting sun often looks oval in the shape because of__________?
The setting sun often looks oval in the shape because of__________?
A. The fact that sun really becomes oval in the evening
B. Refraction of rays of sun passing through the atmosphere
C. Optical Illusion
D. DispersionAccording to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in____________?
According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in____________?
A. 1 hours
B. 5 hours
C. 10 hours
D. 15 hoursFirst antibiotic was extracted from a _________?
First antibiotic was extracted from a _________?A. Bacteria
B. virus
C. Fungus
D. None of theseWhich instrument is used to measuring height above sea leve?
Which instrument is used to measuring height above sea leve?A. Hygrometer
B. Hypsometer
C. Pyrometer
D. SolometerAn element that does not occur in nature but can be produced artificially is__________?
An element that does not occur in nature but can be produced artificially is__________?
A. Plutonium
B. Uranium
C. Radium
D. ThoriumThe energy stored in a dam is___________?
The energy stored in a dam is___________?
A. Kinetic energy
B. Electrical energy
C. Potential energy
D. None of these