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General Science MCQ
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Which of the following branch deals with the various principles that govern the relationship between organisms and their environment?
Correct Option:
B
[ Ecology ]
Explanation:
The waves which can propagate even through the vacuum,are called __________.
Correct Option:
D
[ Electromagnetic waves ]
Explanation:
Sound waves having frequency less than 20 Hz are called __________ waves.
Correct Option:
C
[ Infrasonic ]
Explanation:
The mixture of flammable gases (carbon monoxide and hydrogen) and nonflammable gases (nitrogen and carbon dioxide) is called by what name?
Correct Option:
C
[ Producer Gas ]
Explanation:
Shadows are formed when a __________ object comes in the path of light.
Correct Option:
A
[ Opaque ]
Explanation:
What is the frequency range of audible waves?
Correct Option:
A
[ 20 to 20000 Hz ]
Explanation: The audible range of sound for human beings
extends from about 20 Hz to 20000 Hz (one Hz = one cycle/s). Children under the age of five and some animals, such as dogs can hear up to 25 kHz (1 kHz = 1000 Hz). As people grow older their ears become less sensitive to higher frequencies.
Which of the following is the structural and functional unit of kidneys?
Correct Option:
A
[ Nephron ]
Explanation:
Entomology is the science that studies:
Correct Option:
B
[ Insects ]
Explanation:
Fathom is unit of:
Correct Option:
A
[ Depth ]
Explanation:
Neutron was discovered by:
Correct Option:
A
[ J. Chadwick ]
Explanation:
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