‘Bar’ is the unit of___________?
‘Bar’ is the unit of___________?
A. Temperature
B. Heat
C. Atmospheric pressure
D. Current
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There are almost _______of nephrons in the each kidney in human body?
There are almost _______of nephrons in the each kidney in human body?A. 5 million
B. 3 million
C. 1 million
D. 10 millionWhich one of the following is not a radioactive element ?
Which one of the following is not a radioactive element ?A. Cadmium
B. Thorium
C. Radium
D. UraniumHow many teeth does a dog have?
How many teeth does a dog have?A. 42
B. 45
C. 46
D. 47The average adult dog has about a third more teeth than his human counterpart. Adult dogs have 42 permanent teeth compared to a measly 32 average human teeth (not counting any wisdom teeth. Those are “bonus.”). Puppies possess 28 baby teeth while human babies will have 20 deciduous or “baby” teeth.
A loudspeaker changes _________ energy into sound energy.
A loudspeaker changes _________ energy into sound energy.
A. Chemical
B. Electrical
C. Light
D. Kinetic_______________ causes biomagnification problem in the Ecosystem.
_______________ causes biomagnification problem in the Ecosystem.A. Lead
B. Mercury
C. Chromium
D. CopperSound travels in air at an average speed of nearly________ ?
Sound travels in air at an average speed of nearly________ ?A. 1257 miles per hour
B. 755 miles per hour
C. 330 miles per hour
D. None of these